Home Physics Alternating Current Alternating Current, Voltage and Power In general in an alternating current circuit
Physics Alternating Current Alternating Current, Voltage and Power MCQ (Single Correct)

In general in an alternating current circuit

A
The average value of current is zero
B
The average value of square of the current is zero
C
Average power dissipation is zero
D
The phase difference between voltage and current is zero

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The correct answer is:
A

In AC circuit, average value of current is zero because for half cycle current is positive, for another half current is negative.

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