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Homework Help: Potential enrgy

  1. Dec 10, 2009 #1
    Can the potential energy (electro statical interaction energy) be zero of a system consisting 2 or more point charges or charges distributed on continuous masses like rings,discs etc.?
    I am confused if there exists any such case..can anyone of u give clarification to this doubt?
  2. jcsd
  3. Dec 10, 2009 #2
    please help someone..this doubt is eating me :-(
  4. Dec 10, 2009 #3


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    Homework Helper

    The potential due to a charge is kq/r. What happens if you have two charges of opposite signs?
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