Network Theory And Analysis MCQ Questions & Answers

11

In the above circuit, R₁ = R₂ = R₃ = 3 Ω, what would be the values of R_A, R_B, R_C respectively
Network Theory and Analysis mcq question image

A) 4.5 Ω, 4.5 Ω, 4.5 Ω B) 1.5 Ω, 1.5 Ω, 1.5 Ω C) 3 Ω, 3 Ω, 3 Ω D) 1 Ω, 1 Ω, 1 Ω

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Answer & Solution

Answer: Option D

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12

The flux in a magnetic core is sinusoidally varying at 200 Hz. The maximum flux density is 2 Tesla and eddy current loss is 15 W. If the frequency is raised to 400 Hz and maximum flux density reduced to 1 Tesla, the eddy current loss will

A) Reduce to half B) Get doubled C) Reduce to one-fourth D) Remain same

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Answer & Solution

Answer: Option D

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13

What determines the inductance of a coil?

A) The core material, the number of turns used to wind the core and the frequency of the current through the coil B) The core material, the core diameter, the length of the coil and the number of turns of wire used to wind the coil C) The core diameter, the number of turns of wire used to wind the coil and the type of metal used for the wire D) The core material, the core diameter, the length of the coil and whether the coil is mounted horizontally or vertically

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Answer & Solution

Answer: Option B

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14

Which of the following cannot be connected in series unless they are identical?

A) Voltage source B) Current source C) Both A and B D) Resistance

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Answer & Solution

Answer: Option B

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15

Relative to a given fixed tree of a network,

A) Link currents form an independent set B) Branch currents form an independent set C) Link voltages form an independent set D) Branch voltages form an independent

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Answer & Solution

Answer: Option A

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16

The nodal method of circuit analysis is based on

A) KVL and Ohm's law B) KCL and Ohm's Law C) KVL, KCL and Ohm's Law D) KVL and KCL

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Answer & Solution

Answer: Option B

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17

In a series RL circuit, R = 20 ohms, L = 0.1 H and frequency is 50 Hz. The impedance of the circuit would be doubled by making

A) R = 40 ohms B) R = 52.6 ohms C) R = 67.5 ohms D) R = 72.5 ohms

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Answer & Solution

Answer: Option C

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18

For the series RLC circuit in figure, if ω = 1000 rad/sec, then the current I (in Ampere) is
Network Theory and Analysis mcq question image

A) $$2\angle - {15^ \circ }$$ B) $$2\angle {15^ \circ }$$ C) $$\sqrt 2 \angle - {15^ \circ }$$ D) $$\sqrt 2 \angle {15^ \circ }$$

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Answer & Solution

Answer: Option C

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19

The circuit of the figure represents s
Network Theory and Analysis mcq question image

A) low pass filter B) high pass filter C) band pass filter D) band reject filter

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Answer & Solution

Answer: Option D

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20

Find the current flowing through the resistor R₃?
Network Theory and Analysis mcq question image

A) 0.48 A B) 0.96 A C) 0.24 A D) 1.2 A

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Answer & Solution

Answer: Option B

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Network Theory And Analysis MCQ Questions & Answers | ECE