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Electric field of charged infinite line and plane

  1. Oct 29, 2007 #1

    I have hopefuly simple question, which however drives me crazy...
    I know how to mathematically derive that infinite line of charge has its electric field inversly proportional to the distance from it and also I know how to derive that infinite plane of charge has its electric field constant. Nevertheless I don't see why is this. Why the E-field of infinite line changes, but one of infinite plane does not? I mean I don't see the physical reason for it.

    Thanks for any help.
  2. jcsd
  3. Oct 29, 2007 #2


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    Last edited: Oct 29, 2007
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