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Can I make an electromagnet attract to either pole of a mag?

  1. Jun 25, 2015 #1
  2. jcsd
  3. Jun 25, 2015 #2

    berkeman

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    Staff: Mentor

  4. Jun 25, 2015 #3

    berkeman

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    Staff: Mentor

    Actually, I need to modify my answer...

    If you look at the alternate images you will see the "holding end" of the electromagnet. To make the strongest holding force, they bring both poles of the electromagnet out on that end, with a center pole an an outer pole that have opposite N/S on them. That way when you attach it to a ferrous metal plate, the magnetic path length through the air is minimized.

    So, if you want to be able to attract a N or S pole with this, you would do best to put an extension piece on the center pole, to get it away from the outer return cylinder. Or you may be able to take it apart and remove the outer return cylinder.

    Makes sense?
     
  5. Jun 25, 2015 #4
    Yes, thank you
     
    Last edited by a moderator: Jun 25, 2015
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