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Demagnetization of a permanent magnet and lenz's law

  1. Nov 5, 2013 #1
    this video ( ) demonstrates lenz's law, if the current produced by the magnet fall induces an opposing magnetic field , after many tries , can this field demagnetize the magnet , another thing, consider this : if the copper pipe was instead a pvc pipe, and i wrapped around it copper wires , so when the magnet falls a current flows in that wire , after the magnet reaches it's terminal velocity , the magnetic field will have an opposing field , will they cancel each other? In other words , will current stop flowing in the wire after the magnet reaches it's terminal velocity?
     
    Last edited by a moderator: Sep 25, 2014
  2. jcsd
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