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Vacuum chambers and magnets

  1. Jul 27, 2011 #1
    Do magnets have a longer reach of attraction in a vacuum chamber?
     
  2. jcsd
  3. Jul 28, 2011 #2
    All else being equal, I don't think the attraction force would be significantly different in a vaccum than in air, because the magnetic permability of air is only slightly greater than the permability of a vacuum.
     
  4. Jul 28, 2011 #3

    NascentOxygen

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    Staff: Mentor

    The permeability of the vacuum of free space is practically identical with that for air. So, no, the field around a magnet remains the same shape and strength.
     
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