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Physics electric field problem

  1. Oct 9, 2008 #1
    An infinitely long sheet of charge of width L lies in the xy-plane between x = - L/2 and x = L/2. The surface charge density is n. Derive an expression for the electric field E at height z above the centerline of the sheet. (Assume that z \ge 0.)

    Express your answer in terms of the variables n, L, z, unit vector k, and appropriate constants.
     
  2. jcsd
  3. Oct 10, 2008 #2

    gabbagabbahey

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    What have you tried?
     
  4. Oct 10, 2008 #3
    I don't even know where to start. My book only gives explanations for FINITE planes. :( I know that I'll have to use an improper integral but...idk anything else.
     
  5. Oct 10, 2008 #4

    gabbagabbahey

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    What is the expression used to calculate E for a finite surface?
     
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