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Homework Help: Help~ tmolo test i cant figuar out this

  1. Apr 10, 2008 #1
    find the electric field 2.5m from the center of region of space with a charge density given by ro=5.5E-15 R**(2.3)

    i flip all over the book, i still can't find anything to solve this question, can anyone help?
    the ans from the back of the book is .00241
    Last edited: Apr 10, 2008
  2. jcsd
  3. Apr 10, 2008 #2
    AFAIR, it might be supposed that bulk charge within sphere is equal to the point charge
    Q=(4/3)*Pi*(R^3)*ro placed into the center of sphere.
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