In: Physics
A nonconducting sphere of radius R carries a volume charge density that is proportional to the distance from the center: Rho=Ar for r<=R, where A is a constant; Rho = 0 for r>R
a) Find the total charge on the sphere
b) Find the electric field inside the charge distribution.
c) Find the electric field outside the charge distribution.
d) Sketch the graph of E versus r.