Question

A hot wire ammeter reads 10 A in an ac circuit. The peak value of current is

• A. $5\pi A$
• B. $10\sqrt{2}A$
• C. $\frac{10}{\sqrt{2}}A$
• D. $\frac{2}{\pi }A$

Answer 1

Answer: (B)

$I_{rms}=\frac{1}{\sqrt{2}}i.e.I_0=\sqrt{2}{I}_{rms}=\sqrt{2}\times 10$