Question

A positively charged dielectric has a charge of 2 coulombs. If 12.5x1018

free electrons are added to it, what will be the net charged on the said

dielectric?

Answer 1

The net charge of a dielectric sample

$$q=\rm 2\:C+(-1.6*10^{-19}\: C)*12.5*10^{18}=0\: C$$