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An alternating current having peak value...

An alternating current having peak value `14 A` is used to heat a metal wire. To produce the same heating effect, a constant current `i` can be used where `i` is

A

`14A`

B

about `20A`

C

`7A`

D

about `10A`

Text Solution

Verified by Experts

The correct Answer is:
D
`I = I _(0)/(sqrt2) = (14)/(1.4) =10 A`
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