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Homework Help: Charge on the surface of a conducting sphere.

  1. Feb 8, 2010 #1
    I need to find the charge and charge density on the surface of a conducting sphere of radius r=0.15m and of a potential of V=200V.

    I know the surface charge density, which is Q/A. The surface area is 0.28274, but I can't find the charge.
  2. jcsd
  3. Feb 9, 2010 #2


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    Homework Helper

    Potential of a spherical conductor is
    V = (1/4πεο)*Q/R.
    Find Q, then surface charge density.
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