Charged Spheres and Potential

A. A solid conducting sphere of radius R = 2 m is given a charge Q = 3e-6 C.

is placed inside a neutral spherical conducting shell (red) as shown below.

1. Calculate the electric field and electric potential at

• R = 1 m
• R = 3 m
• R = 5 m
• R = 9 m

2. How much charge is on each surface of the two conductors?

3. Sketch a graph of E-field vs. r and electric potential vs. r, where r is the distance from the center of the sphere.