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Integration limits for Gaussian surface

  1. Sep 27, 2011 #1
    1. The problem statement, all variables and given/known data

    Say you have a nonconducting spherical shell. A is the inner radius and B is the outer radius. If you wanted to set up an integral to find the flux, would the gaussian surface include B, or be just inside it? That is, would the limits of integration go from A to B?

    If the limits did not include the actual surface with the radius B, would you just do something like this: come up with some other variable r_g, where A < r_g < B for the upper limit of integration?
  2. jcsd
  3. Sep 27, 2011 #2


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    To find the flux through which surface, A or B? I suspect that you are confusing finding the flux through either A or B with finding the potential difference between A and B.
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