If a current of $5 A$ $5 A$ passing through a circuit generates $100 W$ $100 W$ of power, what is the resistance of the circuit?

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Answer 1 · 2018-03-05T18:01:59

$4 Omega$

We know, powe $P$ generated across a resistor of resistance $R$ due to current flowing $I$ are related as,

$P=I^2 R$

given, $I=5A,P=100W$

So, $R=P/I^2=100/5^2=100/25=4 Omega$

If a current of 5 A5A5 A passing through a circuit generates 100 W100W100 W of power, what is the resistance of the circuit?