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

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

Alternating Current

Solution:

$I_{ rms }=\frac{I_{0}}{\sqrt{2}}=\frac{14 A }{\sqrt{2}} \approx 10 A$