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Potential on the inside of a hollow insulating sphere

  1. Mar 2, 2009 #1
    1. The problem statement, all variables and given/known data
    We have a hollow insulating spherical shell of inner radius a and outer radius b. While it can be treated as a point for r > b, find the electric potential on the inner surface of the shell.


    2. Relevant equations
    [tex]\phi = k_e\frac{q}{r}[/tex]


    3. The attempt at a solution
    My best idea is that I'm going to need to set up a triple integral. If this was from any point in the center it would be trivial, but it's a little harder from the inner surface. Any suggestions on where to start with this integral?
     
  2. jcsd
  3. Mar 2, 2009 #2

    Delphi51

    User Avatar
    Homework Helper

    You'll need to know the charge on the shell and how it is distributed.
    If uniformly, you should be able to get it with Gauss' law.
     
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