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Q7.1 (b) A $100W$ resistor is connected to a $220\: V$ , $50Hz$ ac supply.

What is the rms value of current in the circuit?

Answers (1)

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Given,

RMS Voltage in the circuit $V_{rms}=200V$

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.

Posted by

Pankaj Sanodiya

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