Question

A charge of `6 C` is passing through points A and B on a circuit. If the charge's electric potential changes from `24 J` to `21 J`, what is the voltage between points A and B?

Answer 1

`500mV`

Explanation:

Voltage (or potential difference) between any 2 points is defined as the work done per unit charge to move a charge between the 2 points.

`therefore V=W/Q`

`=((24-21)J)/(6C)`

`=0.5V`