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Solenoid question ???

Discussion in 'Electronic Basics' started by [email protected], Dec 19, 2008.

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  1. Guest

    I have been doing some experimenting with a relatively short
    cylindrical permanent magnet and a solenoid with DC current applied.
    I would like an explanation as to why these two things happen.

    Placing the magnet near the left end of the solenoid and applying
    current will cause the magnet to move to the right and stop at the
    center of the solenoid. Manually moving the magnet back slightly to
    the left and reversing current will cause the magnet to move to the
    left.


    Placing the magnet near the left end of the solenoid and applying
    current will cause the magnet to move to the right and stop at the
    center of the solenoid. Manually moving the magnet slightly to the
    right and reversing current will cause the magnet to continue moving
    to the right.


    Before doing these experiments my conjecture was that the magnet
    placed at the end of the solenoid would pass completely through the
    solenoid. My thinking was that movement of the magnet would be
    caused
    by the flux lines of the magnet and the solenoid being in different
    directions all the way through the inside of the solenoid.


    Any help would be greatly appreciated. Thanks
     
  2. neon

    neon

    1,325
    0
    Oct 21, 2006
    It is called the rule of thunb. read that first. you will get the ia .
     
  3. Rich Grise

    Rich Grise Guest

    Learn about magnetic poles.

    Good Luck!
    Rich
     
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