If ${E_0}$ represents the peak value of the voltage in an ac circuit, the r.m.s. value of the voltage will be
If ${E_0}$ represents the peak value of the voltage in an ac circuit, the r.m.s. value of the voltage will be
- A
$\frac{{{E_0}}}{\pi }$
- B
$\frac{{{E_0}}}{2}$
- C
$\frac{{{E_0}}}{{\sqrt \pi }}$
- D
$\frac{{{E_0}}}{{\sqrt 2 }}$
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