The potential differences V and the curr...

The potential differences `V` and the current `i` flowing through an instrument in an `AC` circuit of frequency `f` are given by `V=5 cos omega t` and `I=2 sin omega t` amperes (where `omega=2 pi f`). The power dissipated in the instrument is

A

Zero

B

10W

C

5W

D

2.5W

Text Solution

Verified by Experts

The correct Answer is:

D

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