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Homework Help: Potential difference between two plates

  1. Feb 7, 2006 #1
    The problem says that there are two parallel plates having charges of equal magnitude but opposite signs and they are separated by 16cm. Each plate has a surface charge of 31 nc/m2(sorry don't know how to superscript). I need to find the potential difference between the plates.

    I thought I needed to find the electric field of the plate but modelling it as an infinte plane and then find the potential but I can't seem to get the right answer. I was wondering if someone could help me.
  2. jcsd
  3. Feb 8, 2006 #2
    Would you show your work so we can know where to start to help you?
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