JNTU Kakinada (JNTUK) B-Tech First Year Second Semester (1-2) R161208 ELECTRICAL CIRCUIT ANALYSIS Electrical and Electronics Engineering R16 Regulation May 2018 Question Paper
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
b) For the series circuit shown
the power factor is 0.866 lag using locus diagram
7. a) Find the current flowing in the resistor R
resistance of 0.5 ? is inserted in series with R
theorem, the current that will flow through R
b) Calculate the voltage V across the resistor R by using the superposition theorem
shown in figure 7(b).
For the series circuit shown in figure 6(b), evaluate the value of reactance when
the power factor is 0.866 lag using locus diagram.
Figure 6(b)Find the current flowing in the resistor R
4
of the network shown in figure 7(a)
is inserted in series with R
4
, find, using the compensation
theorem, the current that will flow through R
4?
Figure 7(a)Calculate the voltage V across the resistor R by using the superposition theorem
Figure 7(b).
4 of 4
R
1
=4? R
3
=8?
R
2
=16? R
4
=8?
12V
R16
evaluate the value of reactance when (7M)
ure 7(a). If a
find, using the compensation (7M)
Calculate the voltage V across the resistor R by using the superposition theorem as (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
b) For the series circuit shown
the power factor is 0.866 lag using locus diagram
7. a) Find the current flowing in the resistor R
resistance of 0.5 ? is inserted in series with R
theorem, the current that will flow through R
b) Calculate the voltage V across the resistor R by using the superposition theorem
shown in figure 7(b).
For the series circuit shown in figure 6(b), evaluate the value of reactance when
the power factor is 0.866 lag using locus diagram.
Figure 6(b)Find the current flowing in the resistor R
4
of the network shown in figure 7(a)
is inserted in series with R
4
, find, using the compensation
theorem, the current that will flow through R
4?
Figure 7(a)Calculate the voltage V across the resistor R by using the superposition theorem
Figure 7(b).
4 of 4
R
1
=4? R
3
=8?
R
2
=16? R
4
=8?
12V
R16
evaluate the value of reactance when (7M)
ure 7(a). If a
find, using the compensation (7M)
Calculate the voltage V across the resistor R by using the superposition theorem as (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Distinguish between independent and dependent sources.
b) Draw the dual of the network shown
c) Explain the dot convention used in magnetically coupled circuits.
d) Find the response ?I? of an RL series circuit if R = 2
voltage, v(t) = 10 sin 3t.
e) Bring out the differences between series and parallel resonance
f) Obtain the Norton?s equivalent circuit with respect to the terminals AB for the
network shown in figure
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Distinguish between independent and dependent sources.
Draw the dual of the network shown in figure 1(b).
Figure 1(b)Explain the dot convention used in magnetically coupled circuits.
of an RL series circuit if R = 2?, L = 1H and the input
.
differences between series and parallel resonance.
s equivalent circuit with respect to the terminals AB for the
ure 1(f).
Figure 1(f)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (3M) (2M)
, L = 1H and the input (2M) (2M)
s equivalent circuit with respect to the terminals AB for the (2M)
SET – 3
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
b) For the series circuit shown
the power factor is 0.866 lag using locus diagram
7. a) Find the current flowing in the resistor R
resistance of 0.5 ? is inserted in series with R
theorem, the current that will flow through R
b) Calculate the voltage V across the resistor R by using the superposition theorem
shown in figure 7(b).
For the series circuit shown in figure 6(b), evaluate the value of reactance when
the power factor is 0.866 lag using locus diagram.
Figure 6(b)Find the current flowing in the resistor R
4
of the network shown in figure 7(a)
is inserted in series with R
4
, find, using the compensation
theorem, the current that will flow through R
4?
Figure 7(a)Calculate the voltage V across the resistor R by using the superposition theorem
Figure 7(b).
4 of 4
R
1
=4? R
3
=8?
R
2
=16? R
4
=8?
12V
R16
evaluate the value of reactance when (7M)
ure 7(a). If a
find, using the compensation (7M)
Calculate the voltage V across the resistor R by using the superposition theorem as (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Distinguish between independent and dependent sources.
b) Draw the dual of the network shown
c) Explain the dot convention used in magnetically coupled circuits.
d) Find the response ?I? of an RL series circuit if R = 2
voltage, v(t) = 10 sin 3t.
e) Bring out the differences between series and parallel resonance
f) Obtain the Norton?s equivalent circuit with respect to the terminals AB for the
network shown in figure
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Distinguish between independent and dependent sources.
Draw the dual of the network shown in figure 1(b).
Figure 1(b)Explain the dot convention used in magnetically coupled circuits.
of an RL series circuit if R = 2?, L = 1H and the input
.
differences between series and parallel resonance.
s equivalent circuit with respect to the terminals AB for the
ure 1(f).
Figure 1(f)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (3M) (2M)
, L = 1H and the input (2M) (2M)
s equivalent circuit with respect to the terminals AB for the (2M)
SET – 3
Code No: R161208
2. a) Determine the current through 10
by using star-delta conversion
b) Write the mesh equation for the circuit shown in figure 2(b) and determine the
currents I
1
, I
2
and I
3
.
3. a) For the graph shown in fig
tie-set matrix.
4?
8?
12?
20A
PART ?B
Determine the current through 10-? resistance in the network shown in fig
conversion.
Figure 2(a)the mesh equation for the circuit shown in figure 2(b) and determine the
Figure 2(b)r the graph shown in figure 3(a) select a tree, identify the tie-sets and write the
Figure 3(a)
R16
2 of 4
? 24?
13?
30?
?
12?
10?
17?
30?
+ –
180V
3?
I
1
I
2
I
3
2?
20V
resistance in the network shown in figure 2(a) (7M)
the mesh equation for the circuit shown in figure 2(b) and determine the (7M)
sets and write the (7M)
SET – 3
?
4?
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
b) For the series circuit shown
the power factor is 0.866 lag using locus diagram
7. a) Find the current flowing in the resistor R
resistance of 0.5 ? is inserted in series with R
theorem, the current that will flow through R
b) Calculate the voltage V across the resistor R by using the superposition theorem
shown in figure 7(b).
For the series circuit shown in figure 6(b), evaluate the value of reactance when
the power factor is 0.866 lag using locus diagram.
Figure 6(b)Find the current flowing in the resistor R
4
of the network shown in figure 7(a)
is inserted in series with R
4
, find, using the compensation
theorem, the current that will flow through R
4?
Figure 7(a)Calculate the voltage V across the resistor R by using the superposition theorem
Figure 7(b).
4 of 4
R
1
=4? R
3
=8?
R
2
=16? R
4
=8?
12V
R16
evaluate the value of reactance when (7M)
ure 7(a). If a
find, using the compensation (7M)
Calculate the voltage V across the resistor R by using the superposition theorem as (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Distinguish between independent and dependent sources.
b) Draw the dual of the network shown
c) Explain the dot convention used in magnetically coupled circuits.
d) Find the response ?I? of an RL series circuit if R = 2
voltage, v(t) = 10 sin 3t.
e) Bring out the differences between series and parallel resonance
f) Obtain the Norton?s equivalent circuit with respect to the terminals AB for the
network shown in figure
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Distinguish between independent and dependent sources.
Draw the dual of the network shown in figure 1(b).
Figure 1(b)Explain the dot convention used in magnetically coupled circuits.
of an RL series circuit if R = 2?, L = 1H and the input
.
differences between series and parallel resonance.
s equivalent circuit with respect to the terminals AB for the
ure 1(f).
Figure 1(f)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (3M) (2M)
, L = 1H and the input (2M) (2M)
s equivalent circuit with respect to the terminals AB for the (2M)
SET – 3
Code No: R161208
2. a) Determine the current through 10
by using star-delta conversion
b) Write the mesh equation for the circuit shown in figure 2(b) and determine the
currents I
1
, I
2
and I
3
.
3. a) For the graph shown in fig
tie-set matrix.
4?
8?
12?
20A
PART ?B
Determine the current through 10-? resistance in the network shown in fig
conversion.
Figure 2(a)the mesh equation for the circuit shown in figure 2(b) and determine the
Figure 2(b)r the graph shown in figure 3(a) select a tree, identify the tie-sets and write the
Figure 3(a)
R16
2 of 4
? 24?
13?
30?
?
12?
10?
17?
30?
+ –
180V
3?
I
1
I
2
I
3
2?
20V
resistance in the network shown in figure 2(a) (7M)
the mesh equation for the circuit shown in figure 2(b) and determine the (7M)
sets and write the (7M)
SET – 3
?
4?
Code No: R161208
b) Draw the graph of the network shown in fig
matrix.
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
b) Find the effective value of the inductance for the following connection
figure 4(b).
5. a) Calculate the average and rms value for a half
as shown in figure 5(a).
the network shown in figure 3(b) and write the incidence
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative permeability for cast steel is 500 and that of sheet
e coil has 300 turns. Find mmf and current in the coil.
Find the effective value of the inductance for the following connection
Figure 4(b)Calculate the average and rms value for a half-wave rectified sinusoidal quantity
.
Figure 5(a)3 of 4
R16
and write the incidence (7M)
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
permeability for cast steel is 500 and that of sheet (7M)
Find the effective value of the inductance for the following connection shown in (7M)
wave rectified sinusoidal quantity (7M)
SET – 3
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
b) For the series circuit shown
the power factor is 0.866 lag using locus diagram
7. a) Find the current flowing in the resistor R
resistance of 0.5 ? is inserted in series with R
theorem, the current that will flow through R
b) Calculate the voltage V across the resistor R by using the superposition theorem
shown in figure 7(b).
For the series circuit shown in figure 6(b), evaluate the value of reactance when
the power factor is 0.866 lag using locus diagram.
Figure 6(b)Find the current flowing in the resistor R
4
of the network shown in figure 7(a)
is inserted in series with R
4
, find, using the compensation
theorem, the current that will flow through R
4?
Figure 7(a)Calculate the voltage V across the resistor R by using the superposition theorem
Figure 7(b).
4 of 4
R
1
=4? R
3
=8?
R
2
=16? R
4
=8?
12V
R16
evaluate the value of reactance when (7M)
ure 7(a). If a
find, using the compensation (7M)
Calculate the voltage V across the resistor R by using the superposition theorem as (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Distinguish between independent and dependent sources.
b) Draw the dual of the network shown
c) Explain the dot convention used in magnetically coupled circuits.
d) Find the response ?I? of an RL series circuit if R = 2
voltage, v(t) = 10 sin 3t.
e) Bring out the differences between series and parallel resonance
f) Obtain the Norton?s equivalent circuit with respect to the terminals AB for the
network shown in figure
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Distinguish between independent and dependent sources.
Draw the dual of the network shown in figure 1(b).
Figure 1(b)Explain the dot convention used in magnetically coupled circuits.
of an RL series circuit if R = 2?, L = 1H and the input
.
differences between series and parallel resonance.
s equivalent circuit with respect to the terminals AB for the
ure 1(f).
Figure 1(f)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (3M) (2M)
, L = 1H and the input (2M) (2M)
s equivalent circuit with respect to the terminals AB for the (2M)
SET – 3
Code No: R161208
2. a) Determine the current through 10
by using star-delta conversion
b) Write the mesh equation for the circuit shown in figure 2(b) and determine the
currents I
1
, I
2
and I
3
.
3. a) For the graph shown in fig
tie-set matrix.
4?
8?
12?
20A
PART ?B
Determine the current through 10-? resistance in the network shown in fig
conversion.
Figure 2(a)the mesh equation for the circuit shown in figure 2(b) and determine the
Figure 2(b)r the graph shown in figure 3(a) select a tree, identify the tie-sets and write the
Figure 3(a)
R16
2 of 4
? 24?
13?
30?
?
12?
10?
17?
30?
+ –
180V
3?
I
1
I
2
I
3
2?
20V
resistance in the network shown in figure 2(a) (7M)
the mesh equation for the circuit shown in figure 2(b) and determine the (7M)
sets and write the (7M)
SET – 3
?
4?
Code No: R161208
b) Draw the graph of the network shown in fig
matrix.
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
b) Find the effective value of the inductance for the following connection
figure 4(b).
5. a) Calculate the average and rms value for a half
as shown in figure 5(a).
the network shown in figure 3(b) and write the incidence
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative permeability for cast steel is 500 and that of sheet
e coil has 300 turns. Find mmf and current in the coil.
Find the effective value of the inductance for the following connection
Figure 4(b)Calculate the average and rms value for a half-wave rectified sinusoidal quantity
.
Figure 5(a)3 of 4
R16
and write the incidence (7M)
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
permeability for cast steel is 500 and that of sheet (7M)
Find the effective value of the inductance for the following connection shown in (7M)
wave rectified sinusoidal quantity (7M)
SET – 3
Code No: R161208
b) Determine the total current supplied by the m
5(b).
6. a) A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R,
be the voltage across C at
b) For the following circuit
using node voltage method. The source current is given as I
= 100 rad/s.
7.
a) Find the value of R in the circuit shown in
power transfer takes place. What is the amount of this power?
b) Find Thevenin?s equivalent about AB fo
1?
4V 2
+
–
10V
Determine the total current supplied by the mains for the network shown in figure
Figure 5(b)A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R, L and C are 5 ?. 0.1 H and 100 ?F. What would
be the voltage across C at resonance?
For the following circuit shown in figure 6(b), find the node voltages V
using node voltage method. The source current is given as I
s(t) = 10 cos
Figure 6(b)Find the value of R in the circuit shown in below figure 7(a) such that maximum
power transfer takes place. What is the amount of this power?
Figure 7(a).
Find Thevenin?s equivalent about AB for the circuit shown in figure 7(b)
Figure 7(b).
4 of 4
5?
R
1? 2?
2?
2?
V
S
— +
4?
A
B
4?
4 V
S
R16
shown in figure (7M)
A series RLC circuit is connected to a constant voltage variable frequency source
?F. What would (7M)
voltages V
A
and V
B(t) = 10 cos ?t(A), ? (7M)
such that maximum (7M)
7(b). (7M)
6V
+
–
SET – 3
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
b) For the series circuit shown
the power factor is 0.866 lag using locus diagram
7. a) Find the current flowing in the resistor R
resistance of 0.5 ? is inserted in series with R
theorem, the current that will flow through R
b) Calculate the voltage V across the resistor R by using the superposition theorem
shown in figure 7(b).
For the series circuit shown in figure 6(b), evaluate the value of reactance when
the power factor is 0.866 lag using locus diagram.
Figure 6(b)Find the current flowing in the resistor R
4
of the network shown in figure 7(a)
is inserted in series with R
4
, find, using the compensation
theorem, the current that will flow through R
4?
Figure 7(a)Calculate the voltage V across the resistor R by using the superposition theorem
Figure 7(b).
4 of 4
R
1
=4? R
3
=8?
R
2
=16? R
4
=8?
12V
R16
evaluate the value of reactance when (7M)
ure 7(a). If a
find, using the compensation (7M)
Calculate the voltage V across the resistor R by using the superposition theorem as (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Distinguish between independent and dependent sources.
b) Draw the dual of the network shown
c) Explain the dot convention used in magnetically coupled circuits.
d) Find the response ?I? of an RL series circuit if R = 2
voltage, v(t) = 10 sin 3t.
e) Bring out the differences between series and parallel resonance
f) Obtain the Norton?s equivalent circuit with respect to the terminals AB for the
network shown in figure
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Distinguish between independent and dependent sources.
Draw the dual of the network shown in figure 1(b).
Figure 1(b)Explain the dot convention used in magnetically coupled circuits.
of an RL series circuit if R = 2?, L = 1H and the input
.
differences between series and parallel resonance.
s equivalent circuit with respect to the terminals AB for the
ure 1(f).
Figure 1(f)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (3M) (2M)
, L = 1H and the input (2M) (2M)
s equivalent circuit with respect to the terminals AB for the (2M)
SET – 3
Code No: R161208
2. a) Determine the current through 10
by using star-delta conversion
b) Write the mesh equation for the circuit shown in figure 2(b) and determine the
currents I
1
, I
2
and I
3
.
3. a) For the graph shown in fig
tie-set matrix.
4?
8?
12?
20A
PART ?B
Determine the current through 10-? resistance in the network shown in fig
conversion.
Figure 2(a)the mesh equation for the circuit shown in figure 2(b) and determine the
Figure 2(b)r the graph shown in figure 3(a) select a tree, identify the tie-sets and write the
Figure 3(a)
R16
2 of 4
? 24?
13?
30?
?
12?
10?
17?
30?
+ –
180V
3?
I
1
I
2
I
3
2?
20V
resistance in the network shown in figure 2(a) (7M)
the mesh equation for the circuit shown in figure 2(b) and determine the (7M)
sets and write the (7M)
SET – 3
?
4?
Code No: R161208
b) Draw the graph of the network shown in fig
matrix.
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
b) Find the effective value of the inductance for the following connection
figure 4(b).
5. a) Calculate the average and rms value for a half
as shown in figure 5(a).
the network shown in figure 3(b) and write the incidence
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative permeability for cast steel is 500 and that of sheet
e coil has 300 turns. Find mmf and current in the coil.
Find the effective value of the inductance for the following connection
Figure 4(b)Calculate the average and rms value for a half-wave rectified sinusoidal quantity
.
Figure 5(a)3 of 4
R16
and write the incidence (7M)
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
permeability for cast steel is 500 and that of sheet (7M)
Find the effective value of the inductance for the following connection shown in (7M)
wave rectified sinusoidal quantity (7M)
SET – 3
Code No: R161208
b) Determine the total current supplied by the m
5(b).
6. a) A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R,
be the voltage across C at
b) For the following circuit
using node voltage method. The source current is given as I
= 100 rad/s.
7.
a) Find the value of R in the circuit shown in
power transfer takes place. What is the amount of this power?
b) Find Thevenin?s equivalent about AB fo
1?
4V 2
+
–
10V
Determine the total current supplied by the mains for the network shown in figure
Figure 5(b)A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R, L and C are 5 ?. 0.1 H and 100 ?F. What would
be the voltage across C at resonance?
For the following circuit shown in figure 6(b), find the node voltages V
using node voltage method. The source current is given as I
s(t) = 10 cos
Figure 6(b)Find the value of R in the circuit shown in below figure 7(a) such that maximum
power transfer takes place. What is the amount of this power?
Figure 7(a).
Find Thevenin?s equivalent about AB for the circuit shown in figure 7(b)
Figure 7(b).
4 of 4
5?
R
1? 2?
2?
2?
V
S
— +
4?
A
B
4?
4 V
S
R16
shown in figure (7M)
A series RLC circuit is connected to a constant voltage variable frequency source
?F. What would (7M)
voltages V
A
and V
B(t) = 10 cos ?t(A), ? (7M)
such that maximum (7M)
7(b). (7M)
6V
+
–
SET – 3
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations,
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain the volt ampere relationships for R,L and C parameters
b) Determine the basic cut set matrix for the oriented graph given
in the elements 1,2,3 are tree branches
c) Explain the dot connection used in magnetically coupled circuits (mutual
inductances) with the help of
d) Explain the concept of phase angle and phase difference.
e) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the total impedance
f) State Thevenin?s theorem
2. a) Use nodal analysis to find the voltages V
figure 2(a), in which I
1
= 0.4A
+
V
A
l
1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
the volt ampere relationships for R,L and C parameters.
Determine the basic cut set matrix for the oriented graph given figure 1(b)in the elements 1,2,3 are tree branches.
Figure 1(b)Explain the dot connection used in magnetically coupled circuits (mutual
inductances) with the help of suitable examples.
Explain the concept of phase angle and phase difference.
Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance.
Thevenin?s theorem.
PART ?B
Use nodal analysis to find the voltages V
A
, V
B
, and V
C
for the circuit shown in
= 0.4A.
Figure 2(a)R16
1 of 4
+
+
20 ?
100 ?
40 ?
40 ?
l
y
80 l
y
V
X
V
B
0.03 V
X
C
April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M)
figure 1(b) where (3M)
Explain the dot connection used in magnetically coupled circuits (mutual (2M) (3M)
nnected in series (2M) (2M)
circuit shown in (7 M)
SET – 4
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
b) For the series circuit shown
the power factor is 0.866 lag using locus diagram
7. a) Find the current flowing in the resistor R
resistance of 0.5 ? is inserted in series with R
theorem, the current that will flow through R
b) Calculate the voltage V across the resistor R by using the superposition theorem
shown in figure 7(b).
For the series circuit shown in figure 6(b), evaluate the value of reactance when
the power factor is 0.866 lag using locus diagram.
Figure 6(b)Find the current flowing in the resistor R
4
of the network shown in figure 7(a)
is inserted in series with R
4
, find, using the compensation
theorem, the current that will flow through R
4?
Figure 7(a)Calculate the voltage V across the resistor R by using the superposition theorem
Figure 7(b).
4 of 4
R
1
=4? R
3
=8?
R
2
=16? R
4
=8?
12V
R16
evaluate the value of reactance when (7M)
ure 7(a). If a
find, using the compensation (7M)
Calculate the voltage V across the resistor R by using the superposition theorem as (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Distinguish between independent and dependent sources.
b) Draw the dual of the network shown
c) Explain the dot convention used in magnetically coupled circuits.
d) Find the response ?I? of an RL series circuit if R = 2
voltage, v(t) = 10 sin 3t.
e) Bring out the differences between series and parallel resonance
f) Obtain the Norton?s equivalent circuit with respect to the terminals AB for the
network shown in figure
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Distinguish between independent and dependent sources.
Draw the dual of the network shown in figure 1(b).
Figure 1(b)Explain the dot convention used in magnetically coupled circuits.
of an RL series circuit if R = 2?, L = 1H and the input
.
differences between series and parallel resonance.
s equivalent circuit with respect to the terminals AB for the
ure 1(f).
Figure 1(f)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (3M) (2M)
, L = 1H and the input (2M) (2M)
s equivalent circuit with respect to the terminals AB for the (2M)
SET – 3
Code No: R161208
2. a) Determine the current through 10
by using star-delta conversion
b) Write the mesh equation for the circuit shown in figure 2(b) and determine the
currents I
1
, I
2
and I
3
.
3. a) For the graph shown in fig
tie-set matrix.
4?
8?
12?
20A
PART ?B
Determine the current through 10-? resistance in the network shown in fig
conversion.
Figure 2(a)the mesh equation for the circuit shown in figure 2(b) and determine the
Figure 2(b)r the graph shown in figure 3(a) select a tree, identify the tie-sets and write the
Figure 3(a)
R16
2 of 4
? 24?
13?
30?
?
12?
10?
17?
30?
+ –
180V
3?
I
1
I
2
I
3
2?
20V
resistance in the network shown in figure 2(a) (7M)
the mesh equation for the circuit shown in figure 2(b) and determine the (7M)
sets and write the (7M)
SET – 3
?
4?
Code No: R161208
b) Draw the graph of the network shown in fig
matrix.
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
b) Find the effective value of the inductance for the following connection
figure 4(b).
5. a) Calculate the average and rms value for a half
as shown in figure 5(a).
the network shown in figure 3(b) and write the incidence
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative permeability for cast steel is 500 and that of sheet
e coil has 300 turns. Find mmf and current in the coil.
Find the effective value of the inductance for the following connection
Figure 4(b)Calculate the average and rms value for a half-wave rectified sinusoidal quantity
.
Figure 5(a)3 of 4
R16
and write the incidence (7M)
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
permeability for cast steel is 500 and that of sheet (7M)
Find the effective value of the inductance for the following connection shown in (7M)
wave rectified sinusoidal quantity (7M)
SET – 3
Code No: R161208
b) Determine the total current supplied by the m
5(b).
6. a) A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R,
be the voltage across C at
b) For the following circuit
using node voltage method. The source current is given as I
= 100 rad/s.
7.
a) Find the value of R in the circuit shown in
power transfer takes place. What is the amount of this power?
b) Find Thevenin?s equivalent about AB fo
1?
4V 2
+
–
10V
Determine the total current supplied by the mains for the network shown in figure
Figure 5(b)A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R, L and C are 5 ?. 0.1 H and 100 ?F. What would
be the voltage across C at resonance?
For the following circuit shown in figure 6(b), find the node voltages V
using node voltage method. The source current is given as I
s(t) = 10 cos
Figure 6(b)Find the value of R in the circuit shown in below figure 7(a) such that maximum
power transfer takes place. What is the amount of this power?
Figure 7(a).
Find Thevenin?s equivalent about AB for the circuit shown in figure 7(b)
Figure 7(b).
4 of 4
5?
R
1? 2?
2?
2?
V
S
— +
4?
A
B
4?
4 V
S
R16
shown in figure (7M)
A series RLC circuit is connected to a constant voltage variable frequency source
?F. What would (7M)
voltages V
A
and V
B(t) = 10 cos ?t(A), ? (7M)
such that maximum (7M)
7(b). (7M)
6V
+
–
SET – 3
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations,
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain the volt ampere relationships for R,L and C parameters
b) Determine the basic cut set matrix for the oriented graph given
in the elements 1,2,3 are tree branches
c) Explain the dot connection used in magnetically coupled circuits (mutual
inductances) with the help of
d) Explain the concept of phase angle and phase difference.
e) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the total impedance
f) State Thevenin?s theorem
2. a) Use nodal analysis to find the voltages V
figure 2(a), in which I
1
= 0.4A
+
V
A
l
1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
the volt ampere relationships for R,L and C parameters.
Determine the basic cut set matrix for the oriented graph given figure 1(b)in the elements 1,2,3 are tree branches.
Figure 1(b)Explain the dot connection used in magnetically coupled circuits (mutual
inductances) with the help of suitable examples.
Explain the concept of phase angle and phase difference.
Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance.
Thevenin?s theorem.
PART ?B
Use nodal analysis to find the voltages V
A
, V
B
, and V
C
for the circuit shown in
= 0.4A.
Figure 2(a)R16
1 of 4
+
+
20 ?
100 ?
40 ?
40 ?
l
y
80 l
y
V
X
V
B
0.03 V
X
C
April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M)
figure 1(b) where (3M)
Explain the dot connection used in magnetically coupled circuits (mutual (2M) (3M)
nnected in series (2M) (2M)
circuit shown in (7 M)
SET – 4
b)Code No: R161208
Determine the current through 10-? resistance in the network shown in figure 2(b)by using star-delta conversion.
Figure 2(b) (7M)
3. a) For the network shown in figure 3(a) draw the graph and show some possible
trees.
Figure 3(a) (7M)
b) Obtain the fundamental cut set matrix by choosing a suitable T (1,6,7) of the given
graph shown in figure 3(b).
Figure 3(b) (7M)
4. a) A coil of 500 turns is wound uniformly over a wooden ring having a mean
circumference of 50 cm and a cross sectional area of 500 mm
2
. If the current
through the coil is 3 A, calculate (i) The magnetic field strength (ii) The flux density and (iii) The total flux
(7M)
2 of 4
4? 24?
13?
30? 8?
12?
12?
10?
17?
30?
+ –
180V
SET – 4
R16
R
2
R
1
R
3
C
1
L
1
V
I
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
b) For the series circuit shown
the power factor is 0.866 lag using locus diagram
7. a) Find the current flowing in the resistor R
resistance of 0.5 ? is inserted in series with R
theorem, the current that will flow through R
b) Calculate the voltage V across the resistor R by using the superposition theorem
shown in figure 7(b).
For the series circuit shown in figure 6(b), evaluate the value of reactance when
the power factor is 0.866 lag using locus diagram.
Figure 6(b)Find the current flowing in the resistor R
4
of the network shown in figure 7(a)
is inserted in series with R
4
, find, using the compensation
theorem, the current that will flow through R
4?
Figure 7(a)Calculate the voltage V across the resistor R by using the superposition theorem
Figure 7(b).
4 of 4
R
1
=4? R
3
=8?
R
2
=16? R
4
=8?
12V
R16
evaluate the value of reactance when (7M)
ure 7(a). If a
find, using the compensation (7M)
Calculate the voltage V across the resistor R by using the superposition theorem as (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Distinguish between independent and dependent sources.
b) Draw the dual of the network shown
c) Explain the dot convention used in magnetically coupled circuits.
d) Find the response ?I? of an RL series circuit if R = 2
voltage, v(t) = 10 sin 3t.
e) Bring out the differences between series and parallel resonance
f) Obtain the Norton?s equivalent circuit with respect to the terminals AB for the
network shown in figure
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Distinguish between independent and dependent sources.
Draw the dual of the network shown in figure 1(b).
Figure 1(b)Explain the dot convention used in magnetically coupled circuits.
of an RL series circuit if R = 2?, L = 1H and the input
.
differences between series and parallel resonance.
s equivalent circuit with respect to the terminals AB for the
ure 1(f).
Figure 1(f)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (3M) (2M)
, L = 1H and the input (2M) (2M)
s equivalent circuit with respect to the terminals AB for the (2M)
SET – 3
Code No: R161208
2. a) Determine the current through 10
by using star-delta conversion
b) Write the mesh equation for the circuit shown in figure 2(b) and determine the
currents I
1
, I
2
and I
3
.
3. a) For the graph shown in fig
tie-set matrix.
4?
8?
12?
20A
PART ?B
Determine the current through 10-? resistance in the network shown in fig
conversion.
Figure 2(a)the mesh equation for the circuit shown in figure 2(b) and determine the
Figure 2(b)r the graph shown in figure 3(a) select a tree, identify the tie-sets and write the
Figure 3(a)
R16
2 of 4
? 24?
13?
30?
?
12?
10?
17?
30?
+ –
180V
3?
I
1
I
2
I
3
2?
20V
resistance in the network shown in figure 2(a) (7M)
the mesh equation for the circuit shown in figure 2(b) and determine the (7M)
sets and write the (7M)
SET – 3
?
4?
Code No: R161208
b) Draw the graph of the network shown in fig
matrix.
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
b) Find the effective value of the inductance for the following connection
figure 4(b).
5. a) Calculate the average and rms value for a half
as shown in figure 5(a).
the network shown in figure 3(b) and write the incidence
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative permeability for cast steel is 500 and that of sheet
e coil has 300 turns. Find mmf and current in the coil.
Find the effective value of the inductance for the following connection
Figure 4(b)Calculate the average and rms value for a half-wave rectified sinusoidal quantity
.
Figure 5(a)3 of 4
R16
and write the incidence (7M)
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
permeability for cast steel is 500 and that of sheet (7M)
Find the effective value of the inductance for the following connection shown in (7M)
wave rectified sinusoidal quantity (7M)
SET – 3
Code No: R161208
b) Determine the total current supplied by the m
5(b).
6. a) A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R,
be the voltage across C at
b) For the following circuit
using node voltage method. The source current is given as I
= 100 rad/s.
7.
a) Find the value of R in the circuit shown in
power transfer takes place. What is the amount of this power?
b) Find Thevenin?s equivalent about AB fo
1?
4V 2
+
–
10V
Determine the total current supplied by the mains for the network shown in figure
Figure 5(b)A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R, L and C are 5 ?. 0.1 H and 100 ?F. What would
be the voltage across C at resonance?
For the following circuit shown in figure 6(b), find the node voltages V
using node voltage method. The source current is given as I
s(t) = 10 cos
Figure 6(b)Find the value of R in the circuit shown in below figure 7(a) such that maximum
power transfer takes place. What is the amount of this power?
Figure 7(a).
Find Thevenin?s equivalent about AB for the circuit shown in figure 7(b)
Figure 7(b).
4 of 4
5?
R
1? 2?
2?
2?
V
S
— +
4?
A
B
4?
4 V
S
R16
shown in figure (7M)
A series RLC circuit is connected to a constant voltage variable frequency source
?F. What would (7M)
voltages V
A
and V
B(t) = 10 cos ?t(A), ? (7M)
such that maximum (7M)
7(b). (7M)
6V
+
–
SET – 3
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations,
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain the volt ampere relationships for R,L and C parameters
b) Determine the basic cut set matrix for the oriented graph given
in the elements 1,2,3 are tree branches
c) Explain the dot connection used in magnetically coupled circuits (mutual
inductances) with the help of
d) Explain the concept of phase angle and phase difference.
e) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the total impedance
f) State Thevenin?s theorem
2. a) Use nodal analysis to find the voltages V
figure 2(a), in which I
1
= 0.4A
+
V
A
l
1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
the volt ampere relationships for R,L and C parameters.
Determine the basic cut set matrix for the oriented graph given figure 1(b)in the elements 1,2,3 are tree branches.
Figure 1(b)Explain the dot connection used in magnetically coupled circuits (mutual
inductances) with the help of suitable examples.
Explain the concept of phase angle and phase difference.
Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance.
Thevenin?s theorem.
PART ?B
Use nodal analysis to find the voltages V
A
, V
B
, and V
C
for the circuit shown in
= 0.4A.
Figure 2(a)R16
1 of 4
+
+
20 ?
100 ?
40 ?
40 ?
l
y
80 l
y
V
X
V
B
0.03 V
X
C
April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M)
figure 1(b) where (3M)
Explain the dot connection used in magnetically coupled circuits (mutual (2M) (3M)
nnected in series (2M) (2M)
circuit shown in (7 M)
SET – 4
b)Code No: R161208
Determine the current through 10-? resistance in the network shown in figure 2(b)by using star-delta conversion.
Figure 2(b) (7M)
3. a) For the network shown in figure 3(a) draw the graph and show some possible
trees.
Figure 3(a) (7M)
b) Obtain the fundamental cut set matrix by choosing a suitable T (1,6,7) of the given
graph shown in figure 3(b).
Figure 3(b) (7M)
4. a) A coil of 500 turns is wound uniformly over a wooden ring having a mean
circumference of 50 cm and a cross sectional area of 500 mm
2
. If the current
through the coil is 3 A, calculate (i) The magnetic field strength (ii) The flux density and (iii) The total flux
(7M)
2 of 4
4? 24?
13?
30? 8?
12?
12?
10?
17?
30?
+ –
180V
SET – 4
R16
R
2
R
1
R
3
C
1
L
1
V
I
Code No: R161208
b) Determine the coupling coefficient and the energy stored in
t=1.5 s as shown in figure 4(b).
5. a) Find the voltage V
x
if, V
shown in figure 5(a).
b) Calculate the average power absorbed
average power supplied by the voltage source for the circuit shown in fig
6.
a) In a series resonant network R = 6 ohm. The resonant frequency 0.5 MHz and the
band width is 105 rad/sec. Compute
Determine the coupling coefficient and the energy stored in the coupled circuits at
as shown in figure 4(b).
Figure 4(b)if, V
1
(t) = 20cos 1000t volts and V
2
(t) = 20sin 1000t volts
Figure 5(a)Calculate the average power absorbed by the resistor and inductor. Find the
average power supplied by the voltage source for the circuit shown in fig
Figure 5(b)In a series resonant network R = 6 ohm. The resonant frequency 0.5 MHz and the
band width is 105 rad/sec. Compute L and C of the network.
3 of 4
R16
the coupled circuits at (7M) (t) = 20sin 1000t volts as (7M)
by the resistor and inductor. Find the
average power supplied by the voltage source for the circuit shown in figure 5(b). (7M)
In a series resonant network R = 6 ohm. The resonant frequency 0.5 MHz and the (7M)
SET – 4
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) State and explain Kirchoff?s Laws
b) Define the following terms(i) Graph of a network (ii) Oriented graph
c) Find the effective value of the inductance for the
in figure 1(c).
d) Calculate the current drawn by impedance. Z = (30
?0
0
is applied across it.
e) A series RLC circuit has the following parameter values R = 10
C = 10 ?F. Find the Q factor of the circuit at resonance.
f) Is super position valid for power? Substantiate your answer
2. a) In the network shown in
zero current through the (2+j3) b)Determine the voltage V using source transformatio
circuit shown in figure 2(b)
5?
30
3 ?
3 ?
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
1. Question Paper consists of two parts (Part-A and Part
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
State and explain Kirchoff?s Laws.
Define the following terms with example
Find the effective value of the inductance for the following connections
Figure 1(c)Calculate the current drawn by impedance. Z = (30- j70) ? when voltage, V = 120
A series RLC circuit has the following parameter values R = 10 ?, L = 0.01 H and
F. Find the Q factor of the circuit at resonance.
Is super position valid for power? Substantiate your answer.
PART ?B
In the network shown in figure 2(a), determine the voltage V
b
which results in a
zero current through the (2+j3) ? impedance branch.
Figure 2(a)Determine the voltage V using source transformation and simplification
2(b).
Figure 2(b)R16
1 of 3
2?
j3 ?
4?
j5 ? 6?
V
b
6?
6A
4?
V
__
+
8V
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
Part-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (2M)
following connections as shown (3M)
when voltage, V = 120 (2M)
= 0.01 H and (2M) (2M)
which results in a (9M)
n and simplification for the (5M)
SET – 1
V
__
+
Code No: R161208
3. a) For the network shown in
Using the tie-set schedule obtain the loop equations
b) For the network shown in
4. a) A cast steel ring is wound with 500 turns. The cross
m
2
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
flux of f = 4x 10
-4
wb. (b) Determine the values of
these conditions. Assume H for cast steel = 170 At/m.
b) Draw the dotted equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
5. a) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the
active power.
b) Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
R
1
V
shown in figure 3(a), draw the graph and write a tie-
set schedule obtain the loop equations.
Figure 3(a)For the network shown in figure 3(b), draw the graph and show some possible trees
Figure 3(b)A cast steel ring is wound with 500 turns. The cross ? section of the core is 2 x 10
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
wb. (b) Determine the values of ? and ?
r
for the material under
these conditions. Assume H for cast steel = 170 At/m.
equivalent circuit for the net work shown in below fig
find the equivalent inductive reactance.
Figure 4(b)Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance, current, power factor, and
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero.
2 of 3
R16
R
2
1
C
1
L
1
I
-set schedule. (10M)
draw the graph and show some possible trees. (4M)
section of the core is 2 x 10
-3
and the mean length is 0.16m. (a) Find value of I required to develop a magnetic
for the material under (8M)
equivalent circuit for the net work shown in below figure 4(b). and (6M)
nnected in series
total impedance, current, power factor, and (7M)
Determine the rms value of a triangular wave in which the average rises uniformly
from 0 to V volts and completes the cycle by falling instantaneously to zero. (7M)
SET – 1
R
3
Code No: R161208
6. a) For the circuit shown in figure 6(a). (i) Determine the KVL equations. (ii) Find the two loop currents I
1
, and I
2(iii) Find the power supplied by the source and the power dissipated in each resistor.
Figure 6(a) (7M)
b) A coil of 20 ohm resistance and an inductance of 0.2 H are connected in parallel
with a capacitor of 100 ?F. Determine the resonant frequency and the input
impedance at resonance. (7M)
7. a) State and explain compensation theorem. (7M)
b) Find the value of R in the circuit shown in figure 7(b) such that maximum power
transfer takes place. What is the amount of this power?
Figure 7(b) (7M)
3 of 3
SET – 1
R16
+
–
3?
-j5?
-j2?
1?
j2?
2?
10
0
0 ? V
1? 5?
R
1? 4V
6V 2?
+
–
+
–
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain source transformation technique
b) Define the following terms(i) Graph of the Network and Sub(ii) Rank of graph.
c) Find the effective value of the inductance for the following connections
in figure 1(c).
d) A current I = 10?30
0
flows through an impedance, Z = 20
average power delivered to the impedance
e) A two element series circuit has a current of 4
when the voltage of 200 sin (2000t+50
Determine the values of elements.
f) State Maximum power transfer theorem
2. a) Determine the node voltages V1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the questions in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Explain source transformation technique.
Define the following terms.
Graph of the Network and Sub graph.
effective value of the inductance for the following connections
Figure 1(c)flows through an impedance, Z = 20? – 22
0
average power delivered to the impedance.
ries circuit has a current of 4 cos (200t + 13.2
0
) amp flowing
when the voltage of 200 sin (2000t+50
0
) volts is applied across its terminals.
Determine the values of elements.
State Maximum power transfer theorem.
PART -B
voltages V1, V
2
, and V
3
for the circuit shown in figure
figure 2(a)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M) (3M)
effective value of the inductance for the following connections as shown (2M)
? find the (2M)
) amp flowing
is applied across its terminals. (3M) (2M)
ure 2(a). (7M)
SET – 2
Code No: R161208
b) Write the loop equations of the circuit
V
x
.
3. a) From figure 3(a), make the graph and find one tree. How many mesh currents are
required for solving the
b) Determine the basic cut set
3(b) where in the elements 1,
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
2?
2?
10
0
0 ? (V)Write the loop equations of the circuit as shown in figure 2(b) and find the
Figure 2(b)make the graph and find one tree. How many mesh currents are
required for solving the network? Find the number of possible trees.
Figure 3(a)Determine the basic cut set matrix for the oriented graph given as shown figure
where in the elements 1, 2, 3 are tree branches.
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
R16
2 of 4
j2?
10?
V
2?
j5?
?
?
j2?
5
0
30 ? (V)and find the voltage (7M)
make the graph and find one tree. How many mesh currents are (9M)
as shown figure (5M)
. It is made from two
long. It is desired to create a flux of 3
mWb in the core. The relative permeability for cast steel is 500 and that of sheet (7M)
SET – 2
10?
Code No: R161208
b) Write down the voltage equation for the following
effective inductance.
5. a) The following circuit show
across 200V, 50Hz ac supply calculate(i) The current drawn from supply(ii) Apparent power(iii) Real power, and(iv) Reactive power
b) Determine the rms value of a saw tooth
6. a) A series RLC circuit consists of resistance R = 20
capacitance, C= 0.04?F
frequency equal to the frequency of resonance is applied to this
the values of V
C
and V
L
these voltages V
C
and V
L
Write down the voltage equation for the following figure 4(b), and determine the
Figure 4(b)The following circuit shown in figure 5(a) is a parallel RL arrangement connected
Hz ac supply calculate.
The current drawn from supply
Apparent power
Real power, and
Reactive power
Figure 5(a)Determine the rms value of a saw tooth wave as shown in figure 5(b).
Figure 5(b)A series RLC circuit consists of resistance R = 20 ?, inductance, L=
?F. Calculate the frequency at resonance. If a 10 Volts of
frequency equal to the frequency of resonance is applied to this circuit, calculate
across C and L respectively. Find the frequencies at which
V
L
are maximum? .
R16
3 of 4
, and determine the (7M)
rrangement connected (7M) (7M)
0.01H and
10 Volts of
circuit, calculate
the frequencies at which (7M)
SET – 2
Code No: R161208
b) For the series circuit shown
the power factor is 0.866 lag using locus diagram
7. a) Find the current flowing in the resistor R
resistance of 0.5 ? is inserted in series with R
theorem, the current that will flow through R
b) Calculate the voltage V across the resistor R by using the superposition theorem
shown in figure 7(b).
For the series circuit shown in figure 6(b), evaluate the value of reactance when
the power factor is 0.866 lag using locus diagram.
Figure 6(b)Find the current flowing in the resistor R
4
of the network shown in figure 7(a)
is inserted in series with R
4
, find, using the compensation
theorem, the current that will flow through R
4?
Figure 7(a)Calculate the voltage V across the resistor R by using the superposition theorem
Figure 7(b).
4 of 4
R
1
=4? R
3
=8?
R
2
=16? R
4
=8?
12V
R16
evaluate the value of reactance when (7M)
ure 7(a). If a
find, using the compensation (7M)
Calculate the voltage V across the resistor R by using the superposition theorem as (7M)
SET – 2
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Distinguish between independent and dependent sources.
b) Draw the dual of the network shown
c) Explain the dot convention used in magnetically coupled circuits.
d) Find the response ?I? of an RL series circuit if R = 2
voltage, v(t) = 10 sin 3t.
e) Bring out the differences between series and parallel resonance
f) Obtain the Norton?s equivalent circuit with respect to the terminals AB for the
network shown in figure
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
Distinguish between independent and dependent sources.
Draw the dual of the network shown in figure 1(b).
Figure 1(b)Explain the dot convention used in magnetically coupled circuits.
of an RL series circuit if R = 2?, L = 1H and the input
.
differences between series and parallel resonance.
s equivalent circuit with respect to the terminals AB for the
ure 1(f).
Figure 1(f)R16
1 of 4
I B. Tech II Semester Regular/Supplementary Examinations, April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (3M) (3M) (2M)
, L = 1H and the input (2M) (2M)
s equivalent circuit with respect to the terminals AB for the (2M)
SET – 3
Code No: R161208
2. a) Determine the current through 10
by using star-delta conversion
b) Write the mesh equation for the circuit shown in figure 2(b) and determine the
currents I
1
, I
2
and I
3
.
3. a) For the graph shown in fig
tie-set matrix.
4?
8?
12?
20A
PART ?B
Determine the current through 10-? resistance in the network shown in fig
conversion.
Figure 2(a)the mesh equation for the circuit shown in figure 2(b) and determine the
Figure 2(b)r the graph shown in figure 3(a) select a tree, identify the tie-sets and write the
Figure 3(a)
R16
2 of 4
? 24?
13?
30?
?
12?
10?
17?
30?
+ –
180V
3?
I
1
I
2
I
3
2?
20V
resistance in the network shown in figure 2(a) (7M)
the mesh equation for the circuit shown in figure 2(b) and determine the (7M)
sets and write the (7M)
SET – 3
?
4?
Code No: R161208
b) Draw the graph of the network shown in fig
matrix.
4. a) A rectangular core has a cross
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative
steel is 2000. The coil has 300 turns. Find mmf and current in the coil.
b) Find the effective value of the inductance for the following connection
figure 4(b).
5. a) Calculate the average and rms value for a half
as shown in figure 5(a).
the network shown in figure 3(b) and write the incidence
Figure 3(b)A rectangular core has a cross-sectional area of 20 cm
2
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
m wb in the core. The relative permeability for cast steel is 500 and that of sheet
e coil has 300 turns. Find mmf and current in the coil.
Find the effective value of the inductance for the following connection
Figure 4(b)Calculate the average and rms value for a half-wave rectified sinusoidal quantity
.
Figure 5(a)3 of 4
R16
and write the incidence (7M)
. It is made from two
materials: cast steel 50 cm and steel 40 cm long. It is desired to create a flux of 3
permeability for cast steel is 500 and that of sheet (7M)
Find the effective value of the inductance for the following connection shown in (7M)
wave rectified sinusoidal quantity (7M)
SET – 3
Code No: R161208
b) Determine the total current supplied by the m
5(b).
6. a) A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R,
be the voltage across C at
b) For the following circuit
using node voltage method. The source current is given as I
= 100 rad/s.
7.
a) Find the value of R in the circuit shown in
power transfer takes place. What is the amount of this power?
b) Find Thevenin?s equivalent about AB fo
1?
4V 2
+
–
10V
Determine the total current supplied by the mains for the network shown in figure
Figure 5(b)A series RLC circuit is connected to a constant voltage variable frequency source
of 200 V (rms). The values of R, L and C are 5 ?. 0.1 H and 100 ?F. What would
be the voltage across C at resonance?
For the following circuit shown in figure 6(b), find the node voltages V
using node voltage method. The source current is given as I
s(t) = 10 cos
Figure 6(b)Find the value of R in the circuit shown in below figure 7(a) such that maximum
power transfer takes place. What is the amount of this power?
Figure 7(a).
Find Thevenin?s equivalent about AB for the circuit shown in figure 7(b)
Figure 7(b).
4 of 4
5?
R
1? 2?
2?
2?
V
S
— +
4?
A
B
4?
4 V
S
R16
shown in figure (7M)
A series RLC circuit is connected to a constant voltage variable frequency source
?F. What would (7M)
voltages V
A
and V
B(t) = 10 cos ?t(A), ? (7M)
such that maximum (7M)
7(b). (7M)
6V
+
–
SET – 3
Code No: R161208
I B. Tech II Semester Regular/Supplementary Examinations,
ELECTRICAL CIRCUIT ANALYSIS (Electrical and Electronics Engineering
Time: 3 hours
Note: 1. Question Paper consists of two parts (
2. Answering the question in
3. Answer any
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain the volt ampere relationships for R,L and C parameters
b) Determine the basic cut set matrix for the oriented graph given
in the elements 1,2,3 are tree branches
c) Explain the dot connection used in magnetically coupled circuits (mutual
inductances) with the help of
d) Explain the concept of phase angle and phase difference.
e) Two coils of impedance 25.23
across a 230V, 50Hz supply. Find the total impedance
f) State Thevenin?s theorem
2. a) Use nodal analysis to find the voltages V
figure 2(a), in which I
1
= 0.4A
+
V
A
l
1
I B. Tech II Semester Regular/Supplementary Examinations, April/May
ELECTRICAL CIRCUIT ANALYSIS ? I
Electrical and Electronics Engineering)
Note: 1. Question Paper consists of two parts (Part-A and Part-
Answering the question in Part-A is Compulsory
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
the volt ampere relationships for R,L and C parameters.
Determine the basic cut set matrix for the oriented graph given figure 1(b)in the elements 1,2,3 are tree branches.
Figure 1(b)Explain the dot connection used in magnetically coupled circuits (mutual
inductances) with the help of suitable examples.
Explain the concept of phase angle and phase difference.
Two coils of impedance 25.23 ? 37
0
and 18.65 ? 68
0
ohms are connected in series
Hz supply. Find the total impedance.
Thevenin?s theorem.
PART ?B
Use nodal analysis to find the voltages V
A
, V
B
, and V
C
for the circuit shown in
= 0.4A.
Figure 2(a)R16
1 of 4
+
+
20 ?
100 ?
40 ?
40 ?
l
y
80 l
y
V
X
V
B
0.03 V
X
C
April/May – 2018
Max. Marks: 70
-B)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (2M)
figure 1(b) where (3M)
Explain the dot connection used in magnetically coupled circuits (mutual (2M) (3M)
nnected in series (2M) (2M)
circuit shown in (7 M)
SET – 4
b)Code No: R161208
Determine the current through 10-? resistance in the network shown in figure 2(b)by using star-delta conversion.
Figure 2(b) (7M)
3. a) For the network shown in figure 3(a) draw the graph and show some possible
trees.
Figure 3(a) (7M)
b) Obtain the fundamental cut set matrix by choosing a suitable T (1,6,7) of the given
graph shown in figure 3(b).
Figure 3(b) (7M)
4. a) A coil of 500 turns is wound uniformly over a wooden ring having a mean
circumference of 50 cm and a cross sectional area of 500 mm
2
. If the current
through the coil is 3 A, calculate (i) The magnetic field strength (ii) The flux density and (iii) The total flux
(7M)
2 of 4
4? 24?
13?
30? 8?
12?
12?
10?
17?
30?
+ –
180V
SET – 4
R16
R
2
R
1
R
3
C
1
L
1
V
I
Code No: R161208
b) Determine the coupling coefficient and the energy stored in
t=1.5 s as shown in figure 4(b).
5. a) Find the voltage V
x
if, V
shown in figure 5(a).
b) Calculate the average power absorbed
average power supplied by the voltage source for the circuit shown in fig
6.
a) In a series resonant network R = 6 ohm. The resonant frequency 0.5 MHz and the
band width is 105 rad/sec. Compute
Determine the coupling coefficient and the energy stored in the coupled circuits at
as shown in figure 4(b).
Figure 4(b)if, V
1
(t) = 20cos 1000t volts and V
2
(t) = 20sin 1000t volts
Figure 5(a)Calculate the average power absorbed by the resistor and inductor. Find the
average power supplied by the voltage source for the circuit shown in fig
Figure 5(b)In a series resonant network R = 6 ohm. The resonant frequency 0.5 MHz and the
band width is 105 rad/sec. Compute L and C of the network.
3 of 4
R16
the coupled circuits at (7M) (t) = 20sin 1000t volts as (7M)
by the resistor and inductor. Find the
average power supplied by the voltage source for the circuit shown in figure 5(b). (7M)
In a series resonant network R = 6 ohm. The resonant frequency 0.5 MHz and the (7M)
SET – 4
Code No: R161208
b) A coil of 10 ohms resistance and 0.1 H
150 ? F capacitor and the combination is energized with
shown in figure 6(b). Calculate(i) The current drawn from the mainstream(ii) The voltage across the inductor coil and(iii) The average power consumed and the power factor of the circuit
7.
a) In this circuit shown in
and resulting voltage V and show that the reciprocity theorem is verified
b) Find the current I in the circuit shown in fig
theorem.
1?
1A
5
0
90 ? (A)A coil of 10 ohms resistance and 0.1 H inductance is connected in series with a
F capacitor and the combination is energized with 240 V, 50 Hz supply
. Calculate
The current drawn from the mainstream
The voltage across the inductor coil and
average power consumed and the power factor of the circuit
Figure 6(b)in figure 7(a), find voltage V, interchange the current source
and resulting voltage V and show that the reciprocity theorem is verified
Figure 7(a)in the circuit shown in figure 7(b) using the superposition
Figure 7(b)4 of 4
R16
I
1?
2?
3?
2?
5?
-j2?
j5?
I
1
I
2
inductance is connected in series with a
240 V, 50 Hz supply as (7M)
find voltage V, interchange the current source
and resulting voltage V and show that the reciprocity theorem is verified. (7M)
using the superposition (7M)
SET – 4
1V
V
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