Question

A charge of `5 C` is passing through points A and B on a circuit. If the charge's electric potential changes from `32 J` to `18 J`, what is the voltage between points A and B?

Answer 1

`V_"AB"=-2,8V`

Explanation:

`"Voltage between two points is given by " V_"AB"=W_"AB"/q`
`"where "W_"AB": "work done between A and B ; q:charge"`

`W_"AB"=18-32=-14J`
`q=5C`

`V_"AB"=-14/5`

`V_"AB"=-2,8V`