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Can we calculate capacitance of an isloated meta plate?

  1. May 19, 2015 #1
    i have done the capacitance of an isolated charged sphere (=4 pi E R).but can we find capacitance of an isolated ,infinite charged plate too??how?
  2. jcsd
  3. May 19, 2015 #2


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    The question is ill-defined. You can't have an infinite charged plate. At some distance, any plate will no longer appear infinite. A hypothetical infinitely plate has constant electric field lines, which means the voltage is infinite from an infinite distance away, so the capacitance is 0.
  4. May 19, 2015 #3
    Ty brother!!my teacher wasn't able to answer it!!
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