Find the work done to transfer 1019 electrons from point A to B which are maintained at a potential difference of 5 volts.
8 J
Given, number of electrons, n=1019
and potential difference, V=5 V
We know, charge of an electron, e=1.6×10−19 C
Total charge, q=ne=1019×1.6×10−19=1.6 C
Work done, W=Vq=1.6×5=8 J