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Homework Help: Simple Electric Potential/Field problem

  1. Feb 24, 2008 #1


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    1. The problem statement, all variables and given/known data
    Okay this is a simple first year physics question, but I couldn't find anything about it online. Using the simple equation for electric field/potential due to a point charge, what's the electric potential/field at the coordinates of the point charge itself?

    2. Relevant equations

    3. The attempt at a solution

    I'm tempted take limits as r approaches 0, but that seems to imply it approaches infinity which appears absurd. Either that or it's undefined. Anyone?
    Last edited: Feb 24, 2008
  2. jcsd
  3. Jan 29, 2011 #2


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    its undefined.
  4. Jan 29, 2011 #3


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    You're two years too late. :smile:
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