Electric Potential due to Spherical Cavity #Problems practice session.

Electric Potential due to Spherical Cavity #Problems practice session. Qn. 1. What is the Electric Potential due to Solid Sphere (radius R) having cavity of radius r ,at point inside cavity ,out side , middle. Qn. 2 It is very very important qn.(w.r.t to a) In this qn. Also a cavity is made but it is not concentric with solid Sphere. So the qn. Become very very tough . And enjoying to solve it. In this qn. We have to cal. just like 1st qn. Electric Potential at inside cavity , Between,and out side .