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Capacitors: why is the dielectric constant defined the way it is?

  1. Sep 6, 2013 #1
    usually when we have some initial variable U(0), and we have some factor K that changes this initial variable, we usually express the new variable U(f) like so..

    U(f)=KU(0)

    and NOT the other way around...

    so why is the dielectric constant expressed in the following way?

    Eκ=E0

    this doesn't make any sense to me
     
  2. jcsd
  3. Sep 6, 2013 #2

    Simon Bridge

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