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Homework Help: Electric potential and electric field physics problem

  1. Feb 20, 2006 #1
    | o |

    Four positive charges of magnitude q are ar-
    ranged at the corners of a square, as shown.
    At the center C of the square, the potential
    due to one charge alone is V0, and the electric
    field due to one charge alone has magnitude

    Which of the following correctly gives the
    electric potential and the magnitude of the
    electric field at the center of the square due to
    all four charges?

    I think the Electric Potential is 4V0 and the Electric Field is 0. Is this correct?

    Btw - all 4 charges = +q
  2. jcsd
  3. Feb 20, 2006 #2
    that is correct
    the electric field is 0 and the potential is 4V0
    electric field is zero only becuase all the charges are identical.
  4. Feb 20, 2006 #3
    Thanks for the confirmation.
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