Question

two metal spheres of radius 0.01 M and 0.02 M are given a charge of 15 microcoulomb and 45 microcoulomb respectively they are then connected by a wire the final charge on the first sphere is

Answer 1

30 microcolomb is the wright ans

Answer 2

Answer:

20 * 10^-3 C

Explanation:

potential,

                V = V'

               kq/r = kq'/r'

               q/0.01m =(60-q)/0.02m

               q = 20 * 10^-3 C