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Homework Help: Electric Potential

  1. Dec 27, 2011 #1
    1. The problem statement, all variables and given/known data

    Three conductor spheres (radii R) are located aligned with their centers separated by the same distance d (d>>R). The speheres at both sides are connected to ground, and the middle one is given a charge Q. Find the potential of this last one.

    2. Relevant equations

    E = -Grad V
    ∫EdS = Q/e0 (Gauss) [e0: permitivity vacuum]

    3. The attempt at a solution

    I do know the very solution, but I don't know how to reach there. If a calculate E and then the potential V for the middle charge, I don't get the solution. The thing is... conductors at both sides has got potential V=0 (ground state) and so that those don't contribute to the general potential.


    Thanks
     
  2. jcsd
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