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Determining at which point the electric field is zero

  1. Apr 10, 2013 #1
    1. The problem statement, all variables and given/known data

    Determine the point (other than infinity at which the electric field is zero.

    There is a diagram that has 2 charged particles along the x axis separated by a distance of 1.00m. The charged particle on the right is -2.50μC and the charged particle on the left is +6.00μC.

    2. Relevant equations

    The equation to be used is the one for Electric Fields: E=Ke(q/r2) r(hat)

    3. The attempt at a solution

    I understand how to use the Electric Field equations by plugging in all the values, but how do I determine the distance r in the equation. Where is the Electric field located in space?
     
  2. jcsd
  3. Apr 10, 2013 #2
    The distance r in this equation is the distance between the two charges: 1.00 m
    r(hat) is the direction.
     
    Last edited: Apr 10, 2013
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