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Homework Help: Finding the electric field of following setup

  1. Jun 16, 2011 #1
    1. The problem statement, all variables and given/known data
    Assume two perpendicular planes one with charge density [itex]\sigma[/itex] and the other with a charge density [itex]2\sigma[/itex]. Find the electric field.

    [itex]\sigma[/itex] |
    _ |__________________
    //|////// [itex]2\sigma[/itex]///////////////

    2. Relevant equations

    3. The attempt at a solution
    I got a question. Can I assume that the planes are infinitly long, specially close to the origin? In such a case, I could apply the Gaus-law.
    Last edited: Jun 16, 2011
  2. jcsd
  3. Jun 17, 2011 #2


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    Staff: Mentor

    Hi brainslush. By definition a plane is of infinite extent. If you know the result for the field due to an infinite plane of a given charge density, then you're (almost literally) halfway there!
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