Question 2

Imagine a conductive metallic sphere of radius a = 2 cm carrying a total charge Q_a = 8 nC (8x10^-9 C) evenly distributed over its surface. A concentric spherical shell of radius b = 3 cm carries a load total Qb = -8 nC. The central sphere and the other shell are centered at the origin.

a. What is the electrostatic potential difference of a point located at (0.0.2) cm from the potential at the point (3,3,0) cm? [Please note that these points are expressed in rectangular coordinates, so which you should probably work in spherical coordinates when doing your calculations] b. What is the electrostatic potential difference of a point located at (0.0.2) cm from the potential at the point (8,0,0) cm? [Please note that these points are expressed in rectangular coordinates, so which you should probably work in spherical coordinates when doing your calculations]