Network Theory And Analysis MCQ Questions & Answers

61

A two port network is described by the relation
V₁ = 2I₁ + 3V₂
I₂ = -I₁ + 2V₂
Then Z-parameter of such network is

A) \[\left[ {\begin{array}{*{20}{c}} 2&3 \\ { - 1}&2 \end{array}} \right]\] B) \[{\left[ {\begin{array}{*{20}{c}} {3.5}&{1.5} \\ {0.5}&{0.5} \end{array}} \right]^{ - 1}}\] C) \[{\left[ {\begin{array}{*{20}{c}} 2&3 \\ { - 1}&2 \end{array}} \right]^{ - 1}}\] D) \[\left[ {\begin{array}{*{20}{c}} {3.5}&{1.5} \\ {0.5}&{0.5} \end{array}} \right]\]

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Answer & Solution

Answer: Option D

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62

Brune's method of network synthesis is particularly used in

A) RC network B) RL network C) RLC network D) None of these

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Answer & Solution

Answer: Option C

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63

The inductor is a two-terminal energy storage device whose voltage is proportional to the:

A) Integral of the current passing through it B) Integral of the flux across it C) Derivative of the current passing through it D) Derivative of the charge across it

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Answer & Solution

Answer: Option C

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64

Two coupled coils with self inductances of 4 mH and 16 mH are connected in series. The maximum possible value of inductances can be

A) 36 mH B) 20 mH C) 28 mH D) 64 mH

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Answer & Solution

Answer: Option A

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65

The equivalent inductance of two inductances with mutual coupling in between connected in parallel having the following configuration is given by
Network Theory and Analysis mcq question image

Network Theory and Analysis mcq question image

A) \[\frac{{{L_1}{L_2} + {M^2}}}{{{L_1} + {L_2} - 2M}}\] B) \[\frac{{{L_1}{L_2} - {M^2}}}{{{L_1} + {L_2} + 2M}}\] C) \[\frac{{{L_1}{L_2} + {M^2}}}{{{L_1} + {L_2} + 2M}}\] D) \[\frac{{{L_1}{L_2} - {M^2}}}{{{L_1} + {L_2} - 2M}}\]

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Answer & Solution

Answer: Option D

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66

Consider the following circuit
For the above circuit, which one of the following statements is correct? The voltage V₀ is independent of R, if the input signal frequency ω
Network Theory and Analysis mcq question image

A) $${\text{is }}\frac{1}{{\sqrt {{\text{LC}}} }}$$ B) $${\text{is }}\frac{1}{{2\sqrt {{\text{LC}}} }}$$ C) $${\text{is }}\sqrt {{\text{LC}}} $$ D) has any value

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Answer & Solution

Answer: Option A

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67

A sinusoidal voltage v(t) = 100sin1000t is applied a pure capacitor of 100 µF. The power is given by

A) 500sin2000t watt B) 100sin2000t watt C) 500sin1000t watt D) 100sin1000t watt

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Answer & Solution

Answer: Option A

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68

In the circuit shown, if v(t) = 2sin(1000t) volts. R = 1 kΩ and C = 1 µF. Then the steady-state current i(t), in mili amperes (mA), is
Network Theory and Analysis mcq question image

A) 3sin(1000t) + cos(1000t) B) sin(1000t) + cos(1000t) C) sin(1000t) + 3cos(1000t) D) 2sin(1000t) + 2cos(1000t)

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Answer & Solution

Answer: Option A

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69

If I_D = 10 mA at V_D = 1 V at a point of operation, then maximum power dissipation is

A) 1.0 mW B) 1.0 W C) 0.1 mW D) 10 mW

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Answer & Solution

Answer: Option D

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70

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

List-I	List-II
a. Internal impedance of an ideal current source is	1. Forced response of the circuit
b. For attenuated natural oscillations, the poles of the transfer function must lie on the	2. Natural response of the circuit
c. A battery with an e.m.f. E and internal resistance R delivers current to a load RL. Maximum power transferred is	3. E²/4 R
d. The roots of the characteristic equation give	4. E²/2 R
	5. Left hand part of the complex frequency plane
	6. Right hand part of the complex frequency plane
	7. Infinite
	8. Zero

A) a-7, b-6, c-3, d-1 B) a-8, b-5, c-4, d-2 C) a-8, b-6, c-4, d-1 D) a-7, b-5, c-3, d-2

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Answer & Solution

Answer: Option D

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Network Theory And Analysis MCQ Questions & Answers | ECE