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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

`14 A`

B

about `20 A`

C

`7 A`

D

about `10 A`

Text Solution

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The correct Answer is:
D
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