Electric potential inside of conducting shell:

A solid insulating sphere of radius a = .035 m is fixed at the origin of a co-ordinate system as shown. The sphere is uniformly charged with a charge density ρ = -248 μC/m^3. Concentric with the sphere is an uncharged spherical conducting shell of inner radius b = .104 m, and outer radius c = .124 m.

What is V(b), the electric potential at the inner surface of the conducting shell? Define the potential to be zero at infinity.

Question

Electric potential inside of conducting shell:

A solid insulating sphere of radius a = .035 m is fixed at the origin of a co-ordinate system as shown. The sphere is uniformly charged with a charge density ρ = -248 μC/m^3. Concentric with the sphere is an uncharged spherical conducting shell of inner radius b = .104 m, and outer radius c = .124 m.

What is V(b), the electric potential at the inner surface of the conducting shell? Define the potential to be zero at infinity.