NEET Physics Power in AC Circuits MCQ Question
Which of the following combinations about average power in AC circuits is correct?
Average power depends on rms values of voltage and current, and the power factor.
Average power in AC circuits is always equal to the peak power.
Average power does not depend on the phase difference between voltage and current.
Average power is calculated using only peak values of voltage and current.
Correct Answer
Detailed Explanation
Average power in an AC circuit is given by P = VIcosφ, where V and I are rms values and cosφ is the power factor. This shows that average power does depend on the rms values and the power factor, as stated in the NCERT context.
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