A.C Fundamentals, Circuits And Circuit Theory MCQ Questions & Answers

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Learn A.C Fundamentals, Circuits And Circuit Theory MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. A.C Fundamentals, Circuits And Circuit Theory MCQ question is the important chapter for a Electrical Engineering and GATE students. Page-10 section-1

Each section contains 100 MCQs on A.C Fundamentals, Circuits and Circuit Theory .

In a pure inductive circuit

A) The current is in phase with the voltage B) The current lags behind the voltage by 90° C) The current leads the voltage by 90° D) The current can lead or lag by 90°

Discuss

Answer & Solution

Answer: Option B

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

In a pure resistive circuit

A) Current lags behind the voltage by 90° B) Current leads the voltage by 90° C) Current can lead or lag the voltage by 90° D) Current is in phase with the voltage

Discuss

Answer & Solution

Answer: Option D

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

Capacitors for power factor correction are rated in

A) kW B) kVA C) kV D) kVAR

Discuss

Answer & Solution

Answer: Option D

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

The power consumed in a circuit element will be least when the phase difference between the current and voltage is

A) 180° B) 90° C) 60° D) 0°

Discuss

Answer & Solution

Answer: Option B

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

Which of the following statements pertains to resistors only?

A) Can dissipate considerable amount of power B) Can act as energy storage devices C) Connecting them in parallel increases the total value D) Oppose sudden changes in voltage

Discuss

Answer & Solution

Answer: Option A

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

In a series L-C circuit at the resonant frequency the

A) Current is maximum B) Current is minimum C) Impedance is maximum D) Voltage across C is minimum

Discuss

Answer & Solution

Answer: Option A

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

In a circuit containing R, L and C, power loss can take place in

A) C only B) L only C) R only D) All above

Discuss

Answer & Solution

Answer: Option C

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

The best place to install a capacitor is

A) Very near to inductive load B) Across the terminals of the inductive load C) Far away from the inductive load D) Any where

Discuss

Answer & Solution

Answer: Option B

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

All definitions of power factor of a series R-L-C circuit are correct except

A) Ratio of net reactance and impedance B) Ratio of kW and kVA C) Ratio of J and Z D) Ratio of W and VA

Discuss

Answer & Solution

Answer: Option A

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

100

The frequency of an alternating current is

A) The speed with which the alternator runs B) The number of cycles generated in one minute C) The number of waves passing through a point in one second D) The number of electrons passing through a point in one second

Discuss

Answer & Solution

Answer: Option C

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

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A.C Fundamentals, Circuits And Circuit Theory MCQ Questions & Answers | Electrical Engineering