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

[Raj]

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?

 

[zoki85]

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.

 

[Raj]

Is it based on Flemings Left hand rule ?

 

[zoki85]

Right hand rule of a screw thread. I think that's the name

 

[alphy]

The movement of the solenoid rod is a result of the interaction between the magnetic field and the current flowing through the coil. When current is passed through the coil, it creates a magnetic field around the coil. This magnetic field interacts with the magnetic field of the solenoid rod, causing a force to be exerted on the rod. This force is known as the Lorentz force and it causes the solenoid rod to move in a linear motion.

The direction of the movement depends on the direction of the current flow and the orientation of the magnetic field of the solenoid rod. When the current is passed through the coil, the magnetic field produced by the current will either attract or repel the magnetic field of the solenoid rod, depending on their orientations. This results in a net force that causes the solenoid rod to move either towards or away from the coil.

The movement of the solenoid rod can also be controlled by varying the strength of the current passing through the coil. By changing the current, the strength of the magnetic field can be altered, thereby changing the force exerted on the solenoid rod and controlling its movement.

In summary, the linear motion of the solenoid rod is a result of the interaction between the magnetic field produced by the current passing through the coil and the magnetic field of the solenoid rod. This movement can be controlled by changing the strength or direction of the current flowing through the coil.