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Way to concentrate the magnetic field of magnets

  1. Mar 19, 2005 #1
    Is there any way to concentrate the magnetic field of magnets like a bar magnet at a point?
     
  2. jcsd
  3. Mar 24, 2005 #2
    Permeable (ferrous/ ferromagnetic) materials can guide magnetic flux to a point, but magnetism works better with area. The only way I can think of "concentrating" magnetic flux is to create a coil of wire with electricity flowing through it. Permanent magnets have a set flux strength. They will never get stronger (by themselves), but they could lose flux strength over time and under certain conditions.
     
  4. Mar 24, 2005 #3
    No, if you had a universe with just one magnet in it, there would always be a magnetic field at every point in space no matter what you did.
     
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