A solid plastic sphere of radius R has charge −Q distributed uniformly over its surface. It is far from all other objects. (a) Sketch the molecular polarization in the interior of the sphere and...

A solid plastic sphere of radius R has charge −Q distributed uniformly over its surface. It is far from all other objects.

(a) Sketch the molecular polarization in the interior of the sphere and explain briefly.

(b) Calculate the potential relative to infinity at the center of the sphere.