# A charge of 16 C is passing through points A and B on a circuit. If the charge's electric potential changes from 27 J to 3 J, what is the voltage between points A and B?

Dec 16, 2016

A and B differ by 1.5 volts.

#### Explanation:

The relation you need is essentially the definition of voltage (electric potential):

W = qV

where W is the change in electric potential energy, q is the quantity of charge transported and V is the potential difference (or voltage difference) between the two points.

V = $\frac{24}{16}$ $\frac{J}{C}$= 1.5 volts