Question

A charge of `9 C` is passing through points A and B on a circuit. If the charge's electric potential changes from `10 J` to `5 J`, what is the voltage between points A and B?

Answer 1

`556mV`

Explanation:

By definition, the voltage (or potential difference) between any 2 points in an electric circuit is the work done per unit charge to move a coulomb of charge between the 2 points.

`therefore V=W/Q`

`=(10-5)/9`

`=0.556V`