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Electric potential on circumference of charged ring

  1. May 3, 2015 #1
    I heard that maximum electric potential for charged ring is at its circumference. Is there an expression to find the electric potential at any point on the circumference of a charged ring?
  2. jcsd
  3. May 3, 2015 #2


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    2017 Award

    Staff: Mentor

    A mathematical circle would not have a well-defined surface and also no well-defined potential exactly at the ring.
    If the ring has some finite small diameter (so it looks like a donut), it is possible to calculate its potential. I'm not sure if there are analytic formulas for it, but you can certainly get a numerical approximation.
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