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AC Applied to a Resistor

The peak volt...

Question

The peak voltage of an AC supply is $300 V$ . What is the rms voltage?

A

121.2 V

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B

212.1 V

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C

343.4 V

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D

434.3 V

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Solution

The correct option is B $212.1 V$
$A n s w e r : -$ B
$V_{r m s} = \frac{V_{0}}{\sqrt{2}} V_{r m s} = \frac{300}{\sqrt{2}} = 212.16 V$

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