# If a current of 2 A passing through a circuit generates 49 W of power, what is the resistance of the circuit?

Feb 25, 2016

$12.25 \Omega$

#### Explanation:

In an electric circuit, $P = {I}^{2} R$.

$\therefore R = \frac{P}{I} ^ 2$

$= \frac{49}{2} ^ 2$

$= 12.25 \Omega$