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Electrostatic problem with vectors

  1. Jun 9, 2008 #1
    1. The problem statement, all variables and given/known data
    Hi all.

    A uniformly charged sphere centeren at (0,0,0) has a spherical hole inside and the hole has it's center at (d,0,0). Find the electric field inside the hole.

    3. The attempt at a solution
    I use superposition. The electric field from the sphere itself is trivial.

    Now to find the electric field from the hole. This is also trivial, but the direction of E_x is not just x, but x-d. Am I correct about that?
     
  2. jcsd
  3. Jun 9, 2008 #2

    Dick

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    Yes.
     
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