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Perninant magnets

  1. Jul 30, 2010 #1
    What factor reduce the magnetization of a perninant magnet
  2. jcsd
  3. Jul 30, 2010 #2


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    Staff: Mentor

  4. Jul 30, 2010 #3
    Heat will adversely affect a magnet.
  5. Jul 30, 2010 #4
    In addition to heating the magnet (mentioned above), I think that banging the magnet with a sledge hammer (without breaking the magnet into pieces) will reduce the magnetization by breaking up some of the magnetic domains in the magnetized metal or ceramic material.
  6. Jul 31, 2010 #5
    Spilling mistake with predictive writing (T9) on mobile :) permanent
  7. Jul 31, 2010 #6
    Thanks :)
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