Question

Calculate the net charge on a substance consisting of a combination of 1.3 × 10^13 protons and 4.4x 10^13 electrons. The elemental charge is 1.6 × 10^-19 C. Answer in units of C

Answer 1

The charge transferred equals
`-4.96* 10^(-6)Columbs`

Step-by-step explanation:

The charge quantizatrion principle states that the charge is always transferred in terms of product of fundamental charges.

Mathematically
`Q=ne`

where

'e' is the fundamental magnitude of charge

Thus charge transferred by
`4.4* 10^(13)` electrons equals

`Q_(1)=4.4* 10^(13)* -1.6* 10^(-19)=-7.04* 10^(-6)Columbs`

Similarly charge transferred by
`1.3* 10^(13)` protons equals

`Q_(2)=1.3* 10^(13)* 1.6* 10^(-19)=2.08* 10^(-6)Columbs`

Thus the net charge transferred equals

`Q_(1)+Q_(2)=-7.04* 10^(-6)+2.08* 10^(-6)\\\\=-4.96* 10^(-6)columbs`