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प्रश्न
Why is power delivered to an AC circuit not simply the product of voltage and current magnitudes?
पर्याय
Voltage varies sinusoidally, but current is always constant.
Both voltage and current vary sinusoidally and are often out of phase.
Current varies sinusoidally, but voltage is always constant.
Voltage and current are always in phase.
MCQ
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उत्तर
In an AC circuit, voltage and current both vary sinusoidally. Their phase difference affects the average power delivered to the circuit.
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