RC Circuits MCQ Questions & Answers | Electrical Engineering

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Important Theory

1.
A positive angle of 30° is equivalent to a negative angle of

A. -30°

B. -330°

C. -60°

D. -180°

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2.
Apparent power is expressed in watts.

A. True

B. False

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3.
The complex number 6 + j6 is equivalent to

A. 6 ∠45°

B. 36 ∠45°

C. 8.48 ∠45°

D. 8.48 ∠90°

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4.
When the frequency of the source voltage decreases, the impedance of a parallel RC circuit

A. Increases

B. Decreases

C. Does not change

D. Decreases to zero

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5.
In an RC circuit, the impedance is determined by both the resistance and the capacitive reactance combined.

A. True

B. False

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