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If the peak value of a.c. current is 4.2...

If the peak value of a.c. current is `4.24A`, what is its root mean square value ?

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`1_(rms) = (i_(m))/(sqrt 2) = (4.24)/ (sqrt 2) = 2.9981 A" " OR " "1_(rms) = 0.707i_(m) = 0.707 times 4.24 = 2.9976 A`
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