Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

What is the r.m.s. value of current, whose peak value is I, denoted by?

Options:

I/2

I/4

\(\frac{I}{\sqrt { 2}}\)

2I

Correct Answer:

\(\frac{I}{\sqrt { 2}}\)

Explanation:

Irms = \(\sqrt {Iinst. }\) = \(\sqrt { \frac{I2}{2} }\) = \(\frac{I}{\sqrt { 2}}\)