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Homework Help: Energy Density 3-Form

  1. Mar 23, 2007 #1
    Here's is a quote from Electromagnetics by Richard H. Selfridge, David V. Arnold, and Karl F. Warnick:
    I am still not sure where that 1/2 factor comes from...
  2. jcsd
  3. Mar 23, 2007 #2


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    It is quite clear how the 1/2 pops in in the way Griffiths derives it. See p.91-94.
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