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Net charge of a spherical capacitor

  1. Mar 30, 2013 #1
    Suppose we have a hollow spherical shell made of a conducting metal, inside a slightly larger hollow spherical shell made of the same conducting metal. The shells are separated by a layer of insulation, so that the assembly is basically a spherical, hollow capacitor. If I cause the inner shell to have a negative charge of, say, 1 Coulomb, and the outer shell to have a positive charge of 1 Coulomb, what is the net charge on the assembly? Is it zero or is it equal to the charge on the outer shell?
     
  2. jcsd
  3. Mar 30, 2013 #2

    mfb

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    The net charge is the sum of all charges of the setup.
     
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