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Would running an electrical current through a magnet destroy the magnet?

  1. Sep 15, 2007 #1
    Hello,

    Suppose you had an iron magnet. What effect would an electrical current have on this magnet? Would it still retain its magnetic properties?

    Thanks in advance for the help.
     
  2. jcsd
  3. Sep 15, 2007 #2
    Any heat generated by the electricity through resistance of the iron would cause demagnetization. The current would also induce a magnetic field concentric to itself. Depending on the orientation of this induced magnetic field to the domains in the magnet (with respective components parallel or antiparallel), the current would conventionally have a slight magnetizing or demagnetizing effect.
     
  4. Sep 16, 2007 #3
    What a great succint reply Loren...
     
  5. Sep 16, 2007 #4
    Thanks for the pleasant aire.
     
  6. Sep 16, 2007 #5
    Thank you, that was a very clear answer indeed.
     
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