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Homework Help: Electric potential of a ring

  1. Nov 30, 2009 #1
    1. The problem statement, all variables and given/known data
    What is the electric potential a distance x above the center of a ring of charge Q with a radius R? Derive the electric field from this relationship.

    2. Relevant equations


    3. The attempt at a solution
  2. jcsd
  3. Nov 30, 2009 #2


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    Homework Helper

    Every particle on the ring is equally distant from the point where the potential is being calculated. How would you calculate the speed due to one particle at a certain distance?
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