Force between magnets

  1. Is there any device to measure the force between two magnet?
     
  2. jcsd
  3. UltrafastPED

    UltrafastPED 1,918
    Science Advisor
    Gold Member

    Chegg
    The force between two magnets depends upon the geometry of the magnets, and their relative positions:
    http://en.wikipedia.org/wiki/Force_between_magnets

    But if you can constrain their motion - put two bar magnets into a tube - you can use a simple force scale to measure the push/pull. For really close work you would use a piezo crystal, but an ordinary spring scale will work.

    For example:

    Pull spring scales: http://www.globalindustrial.com/g/packaging/scales/Dial/spring-scales-99102

    Or a load cell: http://www.futek.com/product.aspx?t=load

    Or you can just hang some weights ... and see how much it takes to break the magnetic grip. Slip something between the magnets to control the spacing.
     
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