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Question: Answered & Verified by Expert
The rms value of current $I_{\text {rms }}$ is
PhysicsAlternating CurrentMHT CETMHT CET 2012
Options:
  • A $\frac{I_{0}}{2 \pi}$
  • B $\frac{I_{0}}{\sqrt{2}}$
  • C $\frac{2 I_{0}}{\pi}$
  • D $\sqrt{2} I_{0}$
    (where, $I_{0}$ is the value of peak current)
Solution:
2954 Upvotes Verified Answer
The correct answer is: $\frac{I_{0}}{\sqrt{2}}$
The $I_{\mathrm{rms}}$ value of current,
$$
I_{\mathrm{rms}}=\frac{I_{0}}{\sqrt{2}}
$$
(where, $I_{0}$ is the peak value of current)

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