Alternating Current - Result Question 9
9. 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
[1994]
(a) $I _{rms}=\sqrt{2} I_0$
(b) $I _{\text{rms }}=\pi I_0$
(c) $I _{rms}=\frac{1}{\pi} I_0$
(d) $I _{\text{rms }}=\frac{1}{\sqrt{2}} I_0$
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Answer:
Correct Answer: 9. (d)
Solution:
- (d) $I _{rms}=\frac{I_0}{\sqrt{2}}$
