Network Theory And Analysis MCQ Questions & Answers

71

Which one of the following theorems can be conveniently used to calculate the power consumed by the 10 Ω resistor in the network shown in the figure below?
Network Theory and Analysis mcq question image

Network Theory and Analysis mcq question image

A) Thevenin's theorem B) Maximum power transfer theorem C) Millman's theorem D) Superposition theorem

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Answer & Solution

Answer: Option D

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72

With 10 V DC connected at port A in the linear nonreciprocal two port network shown below, the following were observed
1. 1 Ω connected at port B draws a current of 3 A
2. 2.5 Ω connected at port B draws a current of 2 A
The current drawn by 7 Ω connected at port B
Network Theory and Analysis mcq question image

A) $$\frac{3}{7}{\text{A}}$$ B) $$\frac{5}{7}{\text{A}}$$ C) $$1\,{\text{A}}$$ D) $$\frac{9}{7}{\text{A}}$$

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Answer & Solution

Answer: Option C

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73

The open circuit parameters of 2-port network N shown in the figure, are \[\left[ {\begin{array}{*{20}{c}} {{{\text{Z}}_{11}}}&{{{\text{Z}}_{12}}} \\ {{{\text{Z}}_{21}}}&{{{\text{Z}}_{22}}} \end{array}} \right].\] When the network is extended by a resistance R as shown in the figure, the input impedance of the network at points A, B will be
Network Theory and Analysis mcq question image

A) Z₁₁ + Z₁₂ + Z₂₁ + Z₂₂ + R B) Z₁₂ + Z₂₁ + R C) Z₁₂ + Z₂₁ + R D) Z₁₁ + R

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Answer & Solution

Answer: Option D

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74

The time constant of the network shown in the given figure is given by
Network Theory and Analysis mcq question image

A) $$\frac{L}{{{R_3} + \frac{{{R_1}{R_2}}}{{{R_1} + {R_2}}}}}$$ B) $$\frac{L}{{{R_1} + {R_2} + {R_3}}}$$ C) $$\frac{L}{{\frac{1}{{{R_1}}} + \frac{1}{{{R_2}}} + \frac{1}{{{R_3}}}}}$$ D) $$\frac{L}{{\frac{{{R_1}{R_2}}}{{{R_1} + {R_2}}}}}$$

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Answer & Solution

Answer: Option A

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75

For non-inverting adder, which theorem is applicable to determine the expression for output voltage?

A) Thevenin's B) Norton's C) Miller's D) Superposition

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Answer & Solution

Answer: Option D

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76

For a certain load, the true power is 100 W and the reactive power is 100 VAR. What is the apparent power?

A) 120 VA B) 141.4 VA C) 100 VA D) 200 VA

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Answer & Solution

Answer: Option B

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77

What power absorbed by R
Network Theory and Analysis mcq question image

A) 5 W B) 0 W C) 4 W D) 1 W

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Answer & Solution

Answer: Option B

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78

For the circuit shown in figure
Network Theory and Analysis mcq question image

A) The current depends on the resistor B) The voltage across the current source depends on the resistor C) The current depends on the voltage source D) If the resistor were zero, the current would tend to infinity

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Answer & Solution

Answer: Option B

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79

R and C are connected in parallel across a sinusoidal voltage source of 240 V. If the currents through the source and the capacitor are 5 A and 4 A respectively, what is the value of R?

A) 24 Ω B) 48 Ω C) 80 Ω D) 240 Ω

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Answer & Solution

Answer: Option C

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80

For the circuit shown in the below figure, what is the natural frequency?
Network Theory and Analysis mcq question image

A) 1 M rad/s B) 2 M rad/s C) 3 M rad/s D) 5 M rad/s

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Answer & Solution

Answer: Option D

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Network Theory And Analysis MCQ Questions & Answers | ECE