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How do you konw if dipole movement is negative or positive?

  1. Sep 19, 2011 #1
    Let's say you have 2 charges of magnitude 2C except 1 is + and the other -. They're separated by 2m. dipole moment=p=qL

    Which q do you plug in there?
     
  2. jcsd
  3. Sep 20, 2011 #2

    Hootenanny

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    The formula you quote is for a dipole consisting of two charges: +q and -q. Therefore, you plug in the magnitude of the charges q, which is positive by definition.
     
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