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In an AC circuit, V and I are given by V...

In an `AC` circuit, `V` and `I` are given by `V=100sin(100t)volts, I=100sin(100t+(pi)/3)mA`. The power dissipated in circuit is

A

`10^(4)` watt

B

10 watt

C

2.5 watt

D

5 watt

Text Solution

Verified by Experts

The correct Answer is:
C
`P_(av)=V_(rms) I_(rms) cos phi`
`=100/(sqrt(2))xx100/(sqrt(2)) xx10^(-3) cos ((pi)/3) =2.5` watt.
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