Question

When 10^12 electrons are added to an uncharged (neutral) metal sphere, then the charge on the sphere becomes? (a) -0. 16micro coulomb
(b) 0.32 micro coulomb
(c) +0.16 micro coulomb
(d) -0. 48 micro coulomb

Answer 1

Answer:

as we know q= ne

n=10^12

e= - 1.6×10^-19

the correct answer is option a