Question

The maximum value of a.c. voltage in a circuit is 707V. Its rms value is

• A. 70.7 V
• B. 100 V
• C. 500 V
• D. 707 V

Answer 1

Answer: (C)

500 V

Answer 2

$E_{rms} = \frac{E_{0}}{\sqrt{2}} = \frac{707}{1.41} = 500V$