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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_("RMS")=(I_(0))/(sqrt2)=(14)/(sqrt2)=10`
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