A solid sphere of radius R is concentric with a conducting spherical shell that carries charge+qshell and has an inner radius of 2R and outer radius of 3R. The electrostatic potential atthe common center of the sphere and shell is the same as the potential at infinity.
(a) What is the charge qsphere on the solid sphere if the sphere is conducting?
(b) What is the charge qsphere on the solid sphere if the sphere is nonconducting and has auniform charge distribution throughout it?