question_answer

In an a.c. circuit, the r.m.s. value of current, \[{{I}_{rms}}\]is related to the peak current, \[{{I}_{0}}\] by the relation

A)   \[{{I}_{rms}}=\sqrt{2{{I}_{0}}}\]                  

B)  \[{{I}_{rms}}=\pi {{I}_{0}}\]

C)   \[{{I}_{rms}}=\frac{1}{\pi }{{I}_{0}}\]       

D)         \[{{I}_{rms}}=\frac{1}{\sqrt{2}}{{I}_{0}}\]