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In an AC circuit, the applied potential ...

In an `AC` circuit, the applied potential difference and the current flowing are given by
`V=20sin100tvolt,I=5sin(100t-pi/2)` amp
The power consumption is equal to

A

`1000W`

B

`40W`

C

`20W`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
`phi=90^@` between `V` and `I` functions.
`:. P=V_("rms")I_("rms")cosphi=0`
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DC PANDEY-ALTERNATING CURRENT-Level - 1 Objective
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