Network Theory And Analysis MCQ Questions & Answers

31

Match List-I with List-II and select the correct answer using the options given below:

List-I	List-II
a. Superposition theorem	1. Impedance matching in audio circuits
b. Thevenin's theorem	2. Linear bilateral networks
c. Kirchhoff's voltage and current laws	3. Large network in which currents in few elements to be determined
d. Maximum power transfer theorem	4. Currents and voltages in all branches of a network

A) a-1, b-4, c-3, d-2 B) a-2, b-4, c-3, d-1 C) a-1, b-3, c-4, d-2 D) a-2, b-3, c-4, d-1

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

32

The current ratio $$\left( {\frac{{{{\text{i}}_2}}}{{\text{i}}}} \right)$$ for the circuit shown in figure is:
Network Theory and Analysis mcq question image

A) $$\frac{{ - {{\text{L}}_1}}}{{{{\text{L}}_1} + {{\text{L}}_2}}}$$ B) $$\frac{{ - {{\text{L}}_2}}}{{{{\text{L}}_1} + {{\text{L}}_2}}}$$ C) $$\frac{{{{\text{L}}_1}}}{{{{\text{L}}_1} + {{\text{L}}_2}}}$$ D) $$\frac{{{{\text{L}}_2}}}{{{{\text{L}}_1} + {{\text{L}}_2}}}$$

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

33

What is the applied voltage for a series RLC circuit when I_T = 3 mA, V_L = 30 V, V_C = 18 V and R = 1000 ohms?

A) 3.00 V B) 12.37 V C) 34.98 V D) 48.00 V

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

34

The coils on the iron core have coefficient of coupling . . . . . . . .

A) equals to unity B) zero C) from 0.05 to 0.3 D) 0.5

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

35

Two coils with self inductances 1 H & 3 H have a mutual inductance of 1 H. The coupling factor is

A) 1 B) \[\sqrt 3 \] C) \[\frac{1}{{\sqrt 3 }}\] D) 1.33

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

36

Two 2 H inductance coil are connected in series and are also magnetically coupled to each other with coefficient of coupling being 0.1. The total inductance of the combination can be

A) 0.4 H B) 3.2 H C) 4 H D) 4.4 H

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

37

A 120 V ac circuit contains 10 Ω resistance and 30 Ω reactance in series. The average power in the circuit will be nearly:

A) 134 W B) 144 W C) 158 W D) 168 W

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

38

One kWh is equal to . . . . . . . . kCal.

A) 860 B) 735.5 C) 36 × 10⁵ D) 746

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

39

In the following figure, C₁ and C₂ are ideal capacitors. C₁ has been charged to 12 V before the ideal switch S is closed at t = 0. The current i(t) for all t is
Network Theory and Analysis mcq question image

A) Zero B) A step function C) An exponentially decaying function D) An impulse function

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

40

Ohm's law is applicable to

A) DC circuit only B) AC circuit only C) DC circuit as well as AC circuit, provided account is taken of the induced emf resulting from the self-inductance of circuit in cross section of circuit D) DC circuit as well as AC circuit, provided account is taken of the induced emf resulting from mutual inductance of circuit and of the distribution of current in cross section of circuit

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Network Theory And Analysis MCQ Questions & Answers | ECE