A charge of $30 C$ $30 C$ passes through a circuit every $5 s$ $5 s$ . If the circuit can generate $42 W$ $42 W$ of power, what is the circuit's resistance?

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Answer 1 · 2016-05-25T17:39:54

$R=1.17" " Omega$

$I=(Delta Q)/(Delta t)" The electric current passing through circuit"$

$Delta Q=30C$
$Delta t=5s$

$I=30/5=6A$

$P=I^2*R$

$"P:Power"$
$"R:resistance"$

$42=6^2*R$

$42=36*R$

$R=42/36$

$R=1.17" " Omega$

A charge of 30 C30C30 C passes through a circuit every 5 s5s5 s. If the circuit can generate 42 W42W42 W of power, what is the circuit's resistance?