- #1

fornax

- 20

- 0

## Homework Statement

The electric potential at the center of a (5.00cm radius) metallic sphere is zero Volts. The sphere is surrounded by a concentric conducting shell of 10.0cm outer radius and a thickness of 2.0cm. The shell has a net charge of +20mC. a.)Find the charge on the sphere. b.)Give V(r) and then plot V(r). c.) What is the Voltage between the conductors.

## Homework Equations

Outside: V = (1/4∏ε

_{0})*(q/r)

Inside: V = (1/4∏ε

_{0})*(q/R) (R being the radius of the sphere)

## The Attempt at a Solution

I'm honestly really lost with this one, and I was hoping to be pointed in the right direction. The thing that confuses me is that V at the center of the sphere is equal to V at the surface of the sphere. Working off of that, how can the sphere have a charge? Does this mean the net charge is located completely on the conducting shell? I feel like I'm missing something and I have this completely wrong. Thanks for your time reading this.