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The potential difference V across and th...

The potential difference `V` across and the current `I` flowing through an instrument in an `AC` circuit are given by:
`V=5 cos omega t` volt
`I=2 sin omega t` Amp.

A

zero

B

`5` watt

C

`10` watt

D

`2.5` watt

Text Solution

Verified by Experts

The correct Answer is:
A
`P_(av)=v_(rms)i_(rms)cos phi`
`phi=90^(@) P_(av)=0`
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RESONANCE-ALTERNATING CURRENT-Exercise -1 Part-1
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