1000+ Electric Circuits MCQ Questions and Answers Pdf - 1

Question: 1

When power factor angle is varying, the shape of the current locus is

(A) straight line

(B) triangle

(C) circle

(D) semicircle

Ans: C


Question: 2

The minimum requirements for causing flow of current are

(A) a power source and a bulb

(B) a voltage source and a conductor

(C) a voltage source, a conductor, an ammeter and a switch

(D) a voltage source, a resistor and a switch

Ans: B

a voltage source and a conductor

Question: 3

Which of the following is an active element of a circuit?

(A) ideal current source

(B) capacitance

(C) inductance

(D) resistance

Ans: A

ideal current source

Question: 4

Superposition theorem requires as many circuits to be solved as there are

(A) loops

(B) nodes

(C) sources

(D) none of the above

Ans: C


Question: 5

Superposition theorem is applicable only to network that are

(A) passive

(B) linear

(C) non linear

(D) time invariant

Ans: B


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