In an A.C circuit, the instantaneous current is 7A. What is the root mean square(r.m.s)...

In an A.C circuit, the instantaneous current is 7A. What is the root mean square(r.m.s) value of the current I\(_{r.m.s}\)

For an A.C. current,
\(I_{\text{r.m.s}} = \frac{I_0}{\sqrt{2}}\)
where (I_0) is the maximum (peak) current.

Given (I_0 = 7,\text{A}),
\(I_{\text{r.m.s}} = \frac{7}{\sqrt{2}} \approx 4.95,\text{A}\)

Answer: \(4.95 \text{A}\ \ (\approx 5\ \text{A})\)

There is an explanation video available below.

Previous Next

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}