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Charge on a grounded conductor w/ method of images

  1. Oct 18, 2011 #1
    Why is it that whenever the method of images is used to solve for the induced charge on a grounded conductor in the presence of a point charge, the total charge is just the same as the image charge?
     
  2. jcsd
  3. Oct 21, 2011 #2
  4. Oct 21, 2011 #3

    clem

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    Science Advisor

    Gauss's law says that [tex]\oint{\bf E\cdot dA}[/tex] is given by the total charge inside.
    This is either the actual surface charge or the image charge, since they give the same E.
     
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