A non-conducting sphere of radius 'a' has a charge uniformly distributed in it. The charge density inside the sphere is p. Your answers to the following questions should be in terms of p. epsilon. and 'a' as required.
Find the total charge in the sphere.
Find an expression for the electric field inside the sphere, a distance V from the center.
Find an expression for the electric field outside the sphere, a distance Y from the center.