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If you spin a cylindrical magnet will anything happen to its magnetic field?

  1. Jun 3, 2010 #1


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    If the magnetic poles are at the ends of a perfectly symmetric permanent magnet cylinder and and you spin the cylinder around its central axis, will anything happen to the magnetic field?

    I feel like something should happen since the magnetic domains are revolving around, but the field is symmetric about the axis.
    Last edited: Jun 3, 2010
  2. jcsd
  3. Jun 3, 2010 #2
    For permanent cylindrical magnets, if the poles are on the flat surfaces, if you spin the cylindrical magnet on its axis, clockwise or counterclockwise or both at regular/rapid frequency, pulses, nothing will happen to the magnetic field, it won't change to the outside observer.

    If you spin the cylindrical magnet in a way for example, if it's a disc and you flip it like coin, the magnetic field will rotate with it but the overall magnitude and field shape will remain the same.
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