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Simple superconductor question

  1. Aug 6, 2005 #1
    suppose we have a superconductor speciment above Tc, and we put it in magnetic field. then we cool it down to below Tc, then a screening current is produced.

    where does the electron get the energy to initiate the current on the first time?
  2. jcsd
  3. Aug 13, 2005 #2
    Magnetic field. If not, then the energy it gets is from the energy you used to cool it down.
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