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How the solenoid gets the linear motion when the current is passed in the coil?

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  1. Nov 12, 2014 #1

    Raj

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    The Solenoids which are used for pneumatic controller uses the solenoid as a switch to control the value opening and closing. This is done by passing current to through the coil which produces the magnetic field . But i would like to know how the generated magnetic field will move the solenoid rod?
     

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  3. Nov 12, 2014 #2
    When the coil is energized, a magnetic field is created. This field produces a force that acts on the ferromagnetic rod and moves it into the coil up to a certain allowed point. If the rod is a permanent magnet reversing the current direction in the coil reverses poles of the electromagnet and produced force can be in oposite direction to push out the rod.
     
  4. Nov 13, 2014 #3

    Raj

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    Is it based on Flemings Left hand rule ?
     
  5. Nov 13, 2014 #4
    Right hand rule of a screw thread. I think that's the name
     
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