# Q7.1 (a) A $100\Omega$ resistor is connected to a $220\: V$, $50\: Hz$ ac supply.a)what is the RMS value of current?

P Pankaj Sanodiya

Given,

RMS voltage in the circuit $V_{rms}=220V$

Resistance in the circuit $R=100\Omega$

Now,

RMS current in the circuit:

$I_{rms}=\frac{V_{rms}}{R}=\frac{220}{100}=2.2A$

Hence, the RMS value of current is 2.2A.

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