Question

The peak value of alternating current is $5\sqrt{2}$ ampere. The mean square value of current will be:

• A. $5\,\,A$
• B. $2.5\,\,A$
• C. $5\sqrt{2}$
• D. none of these

Answer 1

Answer: (A)

$5\,\,A$

Answer 2

Given, $I_0 = 5 \sqrt 2$ A Root mean-square value of current $I_{ rms} = \frac{ I_0}{ \sqrt 2} = \frac{ 5 \sqrt 2}{ \sqrt 2} = 5 \,A$