# How much power is produced if a voltage of #8 V# is applied to a circuit with a resistance of #16 Omega#?

##### 1 Answer

Feb 13, 2016

Use Ohm's law: V=IR, to obtain the current I. Then use

#### Explanation:

Use Ohm's law: V=IR, to obtain the current I.

Rearrange to make I the subject:

I = V/R = 8V / 16 Ohms = 0.5 Amps.

Then use

P=4 Watts.