If a current of $1 A$ $1 A$ passing through a circuit generates $18 W$ $18 W$ of power, what is the resistance of the circuit?

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Answer 1 · 2018-07-27T09:30:50

$18\ Omega$

If $R\ \ \Omega$ is the electric resistance of the circuit carrying an electric current $I=1\ A$ then the power $P$ of the circuit is given as

$P=I^2R$

$R=P/I^2$

$=18/1^2$

$=18$

hence the resistance of circuit is $18\ Omega$

If a current of 1 A1A1 A passing through a circuit generates 18 W18W18 W of power, what is the resistance of the circuit?