Explore topic-wise MCQs in Network Theory.

This section includes 137 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory knowledge and support exam preparation. Choose a topic below to get started.

51.

In the circuit shown in the figure, the value of the current i will be given by

A. 0 5A
B. 1 25A
C. 1 75A
D. 2 5A
Answer» B. 1 25A
Discussion
52.

Assuming ideal elements in the circuit shown below, the voltage V

A. 3V
B. 0V
C. 3V
D. 5V
Answer» B. 0V
Discussion
53.

Consider the circuit shown below. What is the power delivered by the 24V source?

A. 96W
B. 144W
C. 192W
D. 288W
Answer» E.
Discussion
54.

In figure, the value of R is

A. 10
B. 18
C. 24
D. 12
Answer» B. 18
Discussion
55.

In figure, the value of the source voltage is

A. 12V
B. 24V
C. 50V
D. 44V
Answer» D. 44V
Discussion
56.

The voltage V for the network shown below is always equal to

A. 9V
B. 5V
C. 1V
D. None of these
Answer» B. 5V
Discussion
57.

In the circuit shown below, what is the voltage across 5 resistor i.e. (V

A. 30V
B. 30V
C. 1250V
D. 1250V
Answer» C. 1250V
Discussion
58.

In the circuit shown in the figure below, for what value of C will the current I be in phase with the sinusoidal source voltage V

A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 1</center></td><td rowspan="2">F</td></tr><tr><td style="text-align: center;">4</td></tr></table>
B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 1</center></td><td rowspan="2">F</td></tr><tr><td style="text-align: center;">2</td></tr></table>
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 1</center></td><td rowspan="2">F</td></tr><tr><td style="text-align: center;"> <span style=" text-decoration: overline;">2</span></td></tr></table>
D. 1F
Answer» C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 1</center></td><td rowspan="2">F</td></tr><tr><td style="text-align: center;"> <span style=" text-decoration: overline;">2</span></td></tr></table>
Discussion
59.

The laplace transform of the waveform shown in the figure is

A. 0 5
B. 1 5
C. 0 5
D. 2 0
Answer» D. 2 0
Discussion
60.

Which one of the following is the transfer function of an electrical low pass filter using R and C elements?

A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>RCS</center></td></tr><tr><td style="text-align: center;">(1 + RCS)</td></tr></table>
B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 1</center></td></tr><tr><td style="text-align: center;">(1 + RCS)</td></tr></table>
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> RC</center></td></tr><tr><td style="text-align: center;">(1 + RCS)</td></tr></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> S</center></td></tr><tr><td style="text-align: center;">(1 + RCS)</td></tr></table>
Answer» C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> RC</center></td></tr><tr><td style="text-align: center;">(1 + RCS)</td></tr></table>
Discussion
61.

Consider the circuit as shown below which has a current dependent current source. The value V

A. 1
B. 2
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 1 + </center></td></tr><tr><td style="text-align: center;">2 + </td></tr></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> </center></td></tr><tr><td style="text-align: center;">2 + </td></tr></table>
Answer» D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> </center></td></tr><tr><td style="text-align: center;">2 + </td></tr></table>
Discussion
62.

In the circuit shown below, RL will absorb maximum power when its value is

A. 2 75
B. 7 5
C. 25
D. 27
Answer» D. 27
Discussion
63.

What is the value of Z

A. 2
B. 1/2
C. 1
D. 2
Answer» C. 1
Discussion
64.

What is the open circuit impedance Z

A. 10 + 2s
B. <table><tr><td rowspan="2"><img src="https://www.indiabix.com/_files/images/data-interpretation/common/15-sym-oparen-h1.gif"></td><td rowspan="2">10 -</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 4</center></td><td rowspan="2"><img src="https://www.indiabix.com/_files/images/data-interpretation/common/15-sym-cparen-h1.gif"></td></tr><tr><td style="text-align: center;">s</td></tr></table>
C.
D. <table><tr><td rowspan="2"><img src="https://www.indiabix.com/_files/images/data-interpretation/common/15-sym-oparen-h1.gif"></td><td rowspan="2">10 +</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 4</center></td><td rowspan="2"><img src="https://www.indiabix.com/_files/images/data-interpretation/common/15-sym-cparen-h1.gif"></td></tr><tr><td style="text-align: center;">s</td></tr></table>
E. 10 2s
Answer» B. <table><tr><td rowspan="2"><img src="https://www.indiabix.com/_files/images/data-interpretation/common/15-sym-oparen-h1.gif"></td><td rowspan="2">10 -</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 4</center></td><td rowspan="2"><img src="https://www.indiabix.com/_files/images/data-interpretation/common/15-sym-cparen-h1.gif"></td></tr><tr><td style="text-align: center;">s</td></tr></table>
Discussion
65.

Which of the following are the conditions for a two port passive network to be a reciprocal one?

A. Only 1 and 2
B. Only 2 and 3
C. Only 1 and 3
D. 1, 2 and 3
Answer» E.
Discussion
66.

The given circuit is a combination of

A. resistance of 2 4 in series with capacitive reactance 2 8
B. resistance of 2 4 in series with capacitive reactance 2 4
C. resistance of 2 8 in series with capacitive reactance 2 4
D. resistance of 2 4 in parallel with capacitive reactance 2 8
Answer» B. resistance of 2 4 in series with capacitive reactance 2 4
Discussion
67.

The total impedance of the circuit

A. 83 3 33
B. 83 3 33
C. 38 3 33
D. None of these
Answer» C. 38 3 33
Discussion
68.

The phase angle for the circuit shown below is

A. 47 7
B. 47 7
C. 37 8
D. 38 8
Answer» B. 47 7
Discussion
69.

The phase angle of the circuit

A. 33
B. 33
C. 33 6
D. None of these
Answer» B. 33
Discussion
70.

In the circuit shown below, viewed from AB, the circuit can be reduced to an equivalent circuit as

A. 5V source in series with 10 resistor
B. 7V source in series with 2 4 resistor
C. 15V source in series with 2 4 resistor
D. 1V source in series with 10 resistor
Answer» C. 15V source in series with 2 4 resistor
Discussion
71.

In the circuit shown in the given figure, power dissipated in the 5 resistor is

A. Zero
B. 80W
C. 125W
D. 405W
Answer» B. 80W
Discussion
72.

The two electrical subnetworks N

A. 105V
B. + 105V
C. 15V
D. + 15V
Answer» B. + 105V
Discussion
73.

Which one of the following parameters does not exist for the two-port network shown in the given figure

A. ABCD
B. Y
C. h
D. Z
Answer» E.
Discussion
74.

A dc circuit shown below has a voltage V, a current source I and several resistors. A particular resistor R dissipates a power of 4W when V alone is active. The same resistor dissipates a power of 9W when I alone is active. The power dissipated by R when both sources are active will be

A. 1W
B. 5W
C. 13W
D. 25W
Answer» E.
Discussion
75.

For the given network, the current I is

A. 2A
B. 5A
C. 7A
D. 9A
Answer» D. 9A
Discussion
76.

A network contains only independent current sources and resistors. If the values of all resistors are doubled, the values of node voltage

A. will become half
B. will remain unchanged
C. will become double
D. cannot be determined unless the circuit configuration and the values of the resistors are known
Answer» D. cannot be determined unless the circuit configuration and the values of the resistors are known
Discussion
77.

What are the source voltage and source resistance, respectively for the Thevenin s equivalent circuit as seen from the terminals indicated in the circuit given above?

A. 2 0 V, 24
B. 20V, 48
C. 20V, 4 8
D. 20V, 12
Answer» C. 20V, 4 8
Discussion
78.

In figure, the admittance values of the elements in siemens are Y

A. 1 5 + j0 5
B. 5 j18
C. 0 5 + j1 8
D. 5 j12
Answer» E.
Discussion
79.

For the circuit shown below, the potential difference between points P and Q is

A. 12V
B. 10V
C. 6V
D. 8V
Answer» D. 8V
Discussion
80.

In the given figure, the Thevenin s equivalent pair (voltage, impedance), as seen at the terminals P Q, is given by

A. (2V, 5 )
B. (2V, 7 5 )
C. (4V, 5 )
D. (4V, 7 5 )
Answer» B. (2V, 7 5 )
Discussion
81.

The circuit shown below, will act as an ideal current source with respect to terminals A and B, when frequency is

A. Zero
B. 1 rad/sec
C. 4 rad/sec
D. 16 rad/sec
Answer» D. 16 rad/sec
Discussion
82.

For the circuit shown below, the power absorbed by 2 resistor and power delivered by 10V source will be

A. 2W, 10W
B. 2W, 10W
C. 2W, 10W
D. 2W, 10W
Answer» D. 2W, 10W
Discussion
83.

For the circuit shown below, the current supplied by the sinusoidal current source I is

A. 28A
B. 4A
C. 20A
D. Not determinable from the given data
Answer» D. Not determinable from the given data
Discussion
84.

For the network shown below, the power consumed in the resistance R is measured when one source is acting at a time, these values are 18W, 50W and 98W. When all the sources are acting simultaneously, the possible maximum and minimum values of power in R will be

A. 98W and 18W
B. 166W and 18W
C. 450W and 2W
D. 166W and 2W
Answer» D. 166W and 2W
Discussion
85.

What is the value of the parameter h

A. 0 125
B. 0 167
C. 0 250
D. 0 625
Answer» D. 0 625
Discussion
86.

The circuit shown in the above figure

A. 1 and 3
B. 1 and 2
C. 1 and 4
D. 3 only
Answer» B. 1 and 2
Discussion
87.

What is the value of R required for maximum power transfer in the network shown above?

A. 2
B. 4
C. 8
D. 16
Answer» D. 16
Discussion
88.

What is the Thevenin resistance seen from the terminals AB of the circuit shown above in the figure?

A. 2
B. 4
C. 8
D. 12
Answer» B. 4
Discussion
89.

If element A generates 20W of power, find V

A. 40V
B. 5V
C. 10V
D. None of these
Answer» C. 10V
Discussion
90.

For the a.c. circuit given below, what is the value of I?

A. 1 + j 1
B. 1 + j 0
C. 0 j 1
D. 0 j 0
Answer» E.
Discussion
91.

The value of voltage V

A. 7V
B. 6V
C. 6V
D. 7V
Answer» B. 6V
Discussion
92.

The power absorbed by 5 resistor

A. 5W
B. 25W
C. 30W
D. None of these
Answer» B. 25W
Discussion
93.

The power delivered by 4V source

A. 36W
B. 36W
C. 60W
D. 60W
Answer» B. 36W
Discussion
94.

The power delivered by 7A current source

A. 217W
B. 217W
C. 35W
D. None of these
Answer» C. 35W
Discussion
95.

For the circuit shown below, V = 30V. Find R

A. 600
B. 300
C. 900
D. None of these Statement for
Answer» C. 900
Discussion
96.

The average power delivered by the 500 0 voltage source and dependent source for the circuit shown below

A. 5 432 kW, 2 833 kW
B. 54 32 kW, 2 833 kW
C. 28 33 kW, 5 432 kW
D. 2 833 kW, 5 432 kW
Answer» B. 54 32 kW, 2 833 kW
Discussion
97.

For the circuit shown below, the voltage across 30 resistor is 45 volts. The reading of ammeter A will be

A. 10A
B. 3 5A
C. 22 4A
D. 28A
Answer» C. 22 4A
Discussion
98.

The power absorbed by element B

A. 14W
B. 20W
C. 10W
D. None of these
Answer» B. 20W
Discussion
99.

RL = ?

A. 12
B. 8
C. 10
D. None of these
Answer» B. 8
Discussion
100.

The time constant for the given circuit will be

A. 1/9 s
B. 1/4 s
C. 4s
D. 9s
Answer» D. 9s
Discussion