Home Physics Alternating Current All Topic Question for Revision Test In an AC circuit, the power factor
Physics Alternating Current All Topic Question for Revision Test MCQ (Single Correct)

In an AC circuit, the power factor

A
is zero when the circuit contains an ideal resistance only
B
is unity when the circuit contains an ideal resistance only
C
is infinity when the circuit contains an ideal inductance only
D
None of the above

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Text Solution

Verified by Experts
The correct answer is:
B

Power factor of an AC circuit is given by

For circuit containing an ideal resistance only,

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