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Homework Help: Notation of permittivity in farads per meter question

  1. Jan 19, 2013 #1
    I am using an old textbook as a reference, and the equation given for the electrical permittivity of free space ε0 is given in terms of:


    where this measurement notation represents farads per meter. Why the superscript of -1 in the notation?
  2. jcsd
  3. Jan 19, 2013 #2


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    x^(-1) = 1/x

    Fm(-1) = F/m

    Are you sure you didn't already know that?
  4. Jan 19, 2013 #3
    Oh, geesh. Duh. Yeah, I knew that. Thanks!
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