Notices
Results 1 to 6 of 6

Thread: Superconductor levitation

  1. #1 Superconductor levitation 
    Forum Professor marcusclayman's Avatar
    Join Date
    Mar 2009
    Posts
    1,702
    When a superconductor and magnet is either "levitating" or "suspending"

    The distance between the two, I assume, is the area where each polarity equalizes, give or take some distance due to gravity. Is this right?

    The stronger the magnet, the less effect gravity will have, but will this otherwise change the distance between the magnet and the superconductor?


    Dick, be Frank.

    Ambiguity Kills.
    Reply With Quote  
     

  2.  
     

  3. #2  
    Forum Freshman
    Join Date
    Sep 2009
    Posts
    24
    What do you mean by polarity equalizes?

    The superconductor generates a magnetic field which is equal in magnitude and opposite in direction to the incident magnetic field.

    (There are details here associated with Type 1 and Type 2 superconductors which should be taken into account if the question is to go much further.)

    Just as two magnets with north poles facing each-other will experience a force which 'repels' them, so too will the magnet/superconductor pair.

    When this force is sufficient to overcome the gravitational force which is experienced by whichever (magnet or superconductor) body is on 'top', the movement stops and forces cancel to 0.


    Reply With Quote  
     

  4. #3  
    Forum Professor marcusclayman's Avatar
    Join Date
    Mar 2009
    Posts
    1,702
    Excuse my lack of technical vocabulary.

    What I mentt by "equalize" is where the forces of repulsion and attraction become equal. When subject to gravity, the objects will not be exactly where the magnetic fields are equalized.

    I was wondering if the magnets where larger and more powerful, would gravity have less of an effect, but now I realize that gravity would have more of an effect, and so smaller superconductors are more efficient, no?
    Dick, be Frank.

    Ambiguity Kills.
    Reply With Quote  
     

  5. #4  
    Forum Freshman
    Join Date
    Sep 2009
    Posts
    24
    what do you mean by efficient? efficient at what?
    Reply With Quote  
     

  6. #5  
    Forum Professor marcusclayman's Avatar
    Join Date
    Mar 2009
    Posts
    1,702
    i don't know exactly
    Dick, be Frank.

    Ambiguity Kills.
    Reply With Quote  
     

  7. #6  
    Forum Freshman
    Join Date
    Sep 2009
    Posts
    24
    that makes things difficult.
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •