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In an AC circuit, the current is given b...

In an `AC` circuit, the current is given by `i=5sin(100t-(pi)/2)` and the `AC` potential is `V=200sin(100t)`volt. Then the power consumption is

A

200 watt

B

500 watt

C

1000 watt

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
Here , `I = 5 sin (100 t - pi/2) A, V = 200 sin (100t) V`
`therefore ` Phase difference between V and I is `phi = pi/2`
Power consumed , `P = V_(rms) cos phi`
`= V_(rms) I_(rms) cos 90^@ = 0`
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