Network Theory And Analysis MCQ Questions & Answers

81

The effective capacitance across AB of the infinite ladder shown in the below figure is
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A) $$\left( {1 + \sqrt 3 } \right)C$$ B) $$\left( {1 + \sqrt 7 } \right)C$$ C) $$\left( {1 + \sqrt 5 } \right)C$$ D) $$\frac{{\left( {1 + \sqrt 5 } \right)}}{2}C$$

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Answer & Solution

Answer: Option D

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82

The resistances in the higher range are mostly made of:

A) Carbon B) Aluminium C) Silicon D) Germanium

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Answer & Solution

Answer: Option A

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83

In the series RC circuit shown in the given figure, the rms value of the voltage E is 1 V. If the average power dissipated is equal to 500 mW, then the phase angle between the voltage and current will be
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A) 90° B) 60° C) 45° D) 30°

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Answer & Solution

Answer: Option C

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84

The h-parameters of the circuit shown in the figure are
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A) \[\left[ {\begin{array}{*{20}{c}} {0.1}&{0.1} \\ { - 0.1}&{0.3} \end{array}} \right]\] B) \[\left[ {\begin{array}{*{20}{c}} {10}&{ - 1} \\ 1&{0.05} \end{array}} \right]\] C) \[\left[ {\begin{array}{*{20}{c}} {30}&{20} \\ {20}&{20} \end{array}} \right]\] D) \[\left[ {\begin{array}{*{20}{c}} {10}&1 \\ { - 1}&{0.05} \end{array}} \right]\]

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Answer & Solution

Answer: Option D

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85

The voltage e₀ in the figure is
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A) 48 V B) 24 V C) 36 V D) 28 V

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Answer & Solution

Answer: Option D

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86

Thevenin resistance can be found by taking the ratio (o.c = open circuit, s.c = short circuit, V_s = supply voltage, V_L = load voltage)

A) $$\frac{{{{\text{V}}_{{\text{OC}}}}}}{{{{\text{I}}_{{\text{SC}}}}}}$$ B) $$\frac{{{{\text{V}}_{{\text{SC}}}}}}{{{{\text{I}}_{{\text{OC}}}}}}$$ C) $$\frac{{{{\text{V}}_{\text{S}}}}}{{{{\text{I}}_{\text{S}}}}}$$ D) $$\frac{{{{\text{V}}_{\text{L}}}}}{{{{\text{I}}_{\text{L}}}}}$$

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Answer & Solution

Answer: Option A

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87

The permeability and permittivity of a medium are

A) independent of each other B) related by the velocity of electromagnetic wave C) related by the Boltzmann's constant D) None of the above

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Answer & Solution

Answer: Option B

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88

The driving point impedance of the network shown in figure is
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A) 10 + 2s B) 10 + 2s + $$\frac{1}{{\text{s}}}$$ C) 10 D) $$\frac{1}{{\text{s}}}$$

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Answer & Solution

Answer: Option B

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89

Find equivalent capacitance of the following circuit.

A) $$2\frac{2}{3}\mu {\text{F}}$$ B) $$3\frac{1}{3}\mu {\text{F}}$$ C) $$4\frac{2}{3}\mu {\text{F}}$$ D) $$6\,\mu {\text{F}}$$

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Answer & Solution

Answer: Option A

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90

Which one of the following is an LC immittance function?

A) $$Z\left( s \right) = \frac{{Ks\left( {{s^2} + 4} \right)}}{{\left( {{s^2} + 1} \right)\left( {{s^2} + 3} \right)}}$$ B) $$Z\left( s \right) = \frac{{{s^5} + 4{s^3} + 5s}}{{3{s^4} + 6{s^2}}}$$ C) $$Z\left( s \right) = \frac{{K\left( {{s^2} + 1} \right)\left( {{s^2} + 9} \right)}}{{\left( {{s^2} + 2} \right)\left( {{s^2} + 10} \right)}}$$ D) $$Z\left( s \right) = \frac{{2\left( {{s^2} + 1} \right)\left( {{s^2} + 9} \right)}}{{s\left( {{s^2} + 4} \right)}}$$

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Answer & Solution

Answer: Option D

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Network Theory And Analysis MCQ Questions & Answers | ECE