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NEET UG PHYSICS MCQ: ALTERNATING CURRENT

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Application +4 | -1

The voltage of an ac supply varies with time (t) as

V = 120\sin 100\pi t\cos 100\pi t

The maximum voltage and frequency respectively are

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Correct option: D

60\;volts,\;100\;Hz

Option C (

60\;volts,\;200\;Hz

) is correct because the voltage equation can be simplified using trigonometric identities to find the maximum voltage and frequency.

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