Question

:If a body contains n1 electrons and n2 protons, the total amount of charge on the body is?
A:(n2 x n1) e
B:(n2 / n1) e
C:(n2-n1)e
D:(n2 + n1) e

Answer 1

Dear student,
as electron is negatively charge, so charge on n1 electron = -n1*e
as proton is positively charge, so charge on n2 proton = +n2*e
therefore, net charge=(n2-n1)e.
Regards.