A $100 Ω$ resister is connected to a 220 V, 50 Hz ac supply. The rms value of current in the circuit is

1.56 A

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1.56 mA

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2.2 A

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2.2 mA

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Solution

The correct option is D 2.2 A
$V_{r m s} = 220 V$
$I_{r m s} = \frac{V_{r m s}}{R}$
$= \frac{220}{100} = 2.2 A$
Option $(C)$ is correct.

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