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An AC supply gives 30 Vrmswhich passes t...

An `AC` supply gives `30 V_rms`which passes through a `10 Omega` resistance. The power dissipated in it is

A

`90sqrt(2)W`

B

`90 W`

C

`45sqrt(2) W`

D

`45 W`

Text Solution

Verified by Experts

The correct Answer is:
B
`P=(V_(rms)^(2))/R=((30)^(2))/10=90 W`
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