A surface completely surrounds a 24 106 C charge Find the el

A surface completely surrounds a +2.4 10-6 C charge. Find the electric flux through this surface when the surface is a sphere with a radius of 0.20 m, a sphere with a radius of 0.10 m, and a cube with edges that are 0.10 m long.

(a) a sphere with a radius of 0.20 m
________________ N

Solution

In case of sphere, If you have a surface with charges inside it, the total fluxthrough that
surface will just be 4 ?k * (q total, inside)      

where k = 9*10^9

(a) a sphere with a radius of 0.20 m
_________ 2.184*10^18          _______ N