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For what finite value of x is the electric field zero?

  1. Sep 29, 2008 #1
    1. The problem statement, all variables and given/known data
    A charge +q is at the origin. A charge -2q is at x = 1.60 m on the +x axis.
    (a) For what finite value of x is the electric field zero?
    2. Relevant equations
    3. The attempt at a solution
    I got -3.2m, but its wrong.

    HELP!!!
     
  2. jcsd
  3. Sep 29, 2008 #2

    LowlyPion

    User Avatar
    Homework Helper

    Re: Charges

    Why don't you show the equation that gave that to you? I think there is just a simple mistake.
     
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