A solid spherical ball of radius 4 meters has a charge of
8 nC.
a) Calculate electric flux through the sphere at r = 2, r
= 4, and r = 6 meters away from the center of the ball if it is a
conducting sphere
b) Calculate the same things if it is an insulating sphere of
uniform charge density.
c) Calculate the same things if it is an insulating sphere of
non-uniform charge density, Ļ = kr2