Explore topic-wise MCQs in Network Theory.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

While computing the Thevenin equivalent resistance and the Thevenin equivalent voltage, which of the following steps are undertaken?

A. Both the dependent and independent voltage sources are short-circuited and both the dependent and independent current sources are open-circuited
B. Both the dependent and independent voltage sources are open-circuited and both the dependent and independent current sources are short-circuited
C. The dependent voltage source is short-circuited keeping the independent voltage source untouched and the dependent current source is open-circuited keeping the independent current source untouched
D. The dependent voltage source is open-circuited keeping the independent voltage source untouched and the dependent current source is short-circuited keeping the independent current source untouched
Answer» D. The dependent voltage source is open-circuited keeping the independent voltage source untouched and the dependent current source is short-circuited keeping the independent current source untouched
Discussion
2.

The Thevenin equivalent impedance Z between the nodes P and Q in the following circuit is __________

A. 1
B. 1 + s + \(\frac{1}{s}\)
C. 2 + s + \(\frac{1}{s}\)
D. 3 + s + \(\frac{1}{s}\)
Answer» B. 1 + s + \(\frac{1}{s}\)
Discussion
3.

In the figure given below, the Thevenin’s equivalent pair, as seen at the terminals P-Q, is given by __________

A. 2 V and 5 Ω
B. 2 V and 7.5 Ω
C. 4 V and 5 Ω
D. 4 V and 7.5 Ω
Answer» B. 2 V and 7.5 Ω
Discussion
4.

In the figure given below, the value of Resistance R by Thevenin Theorem is ___________

A. 10
B. 20
C. 30
D. 40
Answer» C. 30
Discussion
5.

In the figure given below, the value of the source voltage is ___________

A. 12 V
B. 24 V
C. 30 V
D. 44 V
Answer» D. 44 V
Discussion
6.

For the circuit shown in the figure below, the Thevenin voltage and resistance looking into X-Y are __________

A. \(\frac{4}{3}\) V and 2 Ω
B. 4V and \(\frac{2}{3}\) Ω
C. \(\frac{4}{3}\) V and \(\frac{2}{3}\) Ω
D. 4 V and 2 Ω
Answer» E.
Discussion
7.

For the circuit shown in figure below, the value of the Thevenin resistance is _________

A. 100 Ω
B. 136.4 Ω
C. 200 Ω
D. 272.8 Ω
Answer» B. 136.4 Ω
Discussion
8.

In the circuit given below, it is given that VAB = 4 V for RL = 10 kΩ and VAB = 1 V for RL = 2kΩ. The values of the Thevenin resistance and voltage for the network N are ____________

A. 16 kΩ and 30 V
B. 30 kΩ and 16 V
C. 3 kΩ and 6 V
D. 50 kΩ and 30 V
Answer» C. 3 kΩ and 6 V
Discussion
9.

In the following circuit, the value of open circuit voltage and the Thevenin resistance between terminals a and b are ___________

A. VOC = 100 V, RTH = 1800 Ω
B. VOC = 0 V, RTH = 270 Ω
C. VOC = 100 V, RTH = 90 Ω
D. VOC = 0 V, RTH = 90 Ω
Answer» E.
Discussion
10.

For the circuit given below, the Thevenin voltage across the terminals A and B is ____________

A. 1.25 V
B. 0.25 V
C. 1 V
D. 0.5 V
Answer» E.
Discussion
11.

For the circuit given below, the Thevenin resistance across the terminals A and B is _____________

A. 5 Ω
B. 7 kΩ
C. 1.5 kΩ
D. 1.1 kΩ
Answer» C. 1.5 kΩ
Discussion
12.

In the following circuit, when R = 0 Ω, the current IR equals to 10 A. The value of R, for which maximum power is absorbed by it is ___________

A. 4 Ω
B. 3 Ω
C. 2 Ω
D. 1 Ω
Answer» D. 1 Ω
Discussion
13.

For the circuit given in figure below, the Thevenin equivalent as viewed from terminals y and y’ is _________

A. 8 V and 32 Ω
B. 4 V and 32 Ω
C. 5 V and 6 Ω
D. 7 V and 6 Ω
Answer» E.
Discussion
14.

A circuit is given in the figure below. The Thevenin equivalent as viewed from terminals x and x’ is ___________

A. 8 V and 6 Ω
B. 5 V and 6 Ω
C. 5 V and 32 Ω
D. 8 V and 32 Ω
Answer» C. 5 V and 32 Ω
Discussion