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How to calculate the repulsion force between a permanent and an electromagnet?

  1. May 27, 2012 #1
    Both the permanent and electromagnet will be constrained within a cylindrical tube (both magnets will be of cylindrical shaped, and have more/less the same cross sectional area). I want to know if its possible to calculate the repulsion force, in lbs, between the magnets, with a distance increment of 0.25cm.

    Ideally, I wish to have the strength of the permanent magnet match closely to that of the electromagnet, or vise-versa. Will having matching strength magnets be the ideal set up to yield the greatest repulsion?

    Thanks ahead of times!
     
  2. jcsd
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