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The voltage of an AC supply varies with ...

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

A

120 volt, 100 Hz

B

`(120)/(sqrt 2)` volt, 100 Hz

C

60 volt, 200 Hz

D

60 volt, 100 Hz

Text Solution

Verified by Experts

The correct Answer is:
D
`V = 120 sin 100 pi t cos 100 pi t rightarrow V = 60 sin 200 pi t`
`V_(max) = 60 V and v = 100 Hz`
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DISHA PUBLICATION-ALTERNATING CURRENT -Exercise - 1 : CONCEPT BUILDER (TOPIC 1: Alternating Current, Voltage and Power)
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