Question

A piece of amber is charged by rubbing with a piece of fur. If the net excess charge on the fur is +8.0 nC (+8.0 10-9 C), how many electrons were added to the amber?

Answer 1

Number of electron on the fur will be
`5* 10^(10)electron`

Step-by-step explanation:

We have given net charge on the fur
`q=8nC=8* 10^(-9)C`

Charge on one electron
`e=1.6* 10^(-19)C`

Let there are n number of electrons

So
`ne=8* 10^(-9)`

`n* 1.6* 10^(-19)=8* 10^(-9)`

`n=5* 10^(10)electron`

So number of electron on the fur will be
`5* 10^(10)electron`