Question

A sphere of radius is concentric with and inside a sphere with radius . These spheres are not metallic; they are insulators which carry a charge. The potential on the inside sphere is and the potential on the outside sphere is . Find the potential between the spheres.

Answer 1

The potential between the spheres is shown in the attachment.

Step-by-step explanation:

The step by step derivation and appropriate assumptions is as shown in the attachment.