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## Homework Statement

If you have a conducting shell with charge Q surrounding a conducting sphere of charge negative - Q, what is the potential at the outside of the conducting shell? What about the inside?

## Homework Equations

V=(kQenclosed)/r

## The Attempt at a Solution

I don't know if the above equation holds true in this case. Are these assumptions correct:

1. On the outside of the conducting shell, potential is 0?

2. On the inside, the potential is kQ/R where R is the radius of the conducting shell?