Potential at center of sphere

  1. A metal sphere carries a charge of 5 x 10^-9 C and is at a potentional of 400 V, relative to the potential far away. The potential at the center of the sphere is:

    A) 400V

    B)-400V

    C)2 x 10^-6 V

    D)0

    E) none of these

    What equation(s) would i use to solve this?
     
  2. jcsd
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