Question

An object contains n protons and m electrons what is the net charge

Answer 1

Hey There!!



A proton and an electron have the same amount of charge, however, the signs are different. Proton has a positive charge. Electron has a negative charge.

The magnitude of charge on both is :

$e=1.602 \times 10^{-19} \, \, coulombs$

A proton has a +e charge, while an electron has -e charge.


Now, we have n protons and m electrons:

So:

Total charge on n protons = +ne
Total charge on m electrons = -me


So,Net Charge = ne - me = (n-m)e



Thus, the Net Charge is (n-m)e , where e is the magnitude if charge on a single proton or electron.



Hope it helps
Purva
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