What happens to a permanent magnet inside a electromagnetic toroid?

[Miv]

Suppose a permanent bar-magnet is placed inside a toroid/torus and the toroid is then completed and power applied. How will the magnet move? Will it move?

 

[Simon Bridge]

Welcome to PF;
Have a think about this: how would the permanent magnet know to behave any differently to the toroid magnetic field as to any other magnetic field?

 

[Miv]

So it would traverse the toroid and move to the side because of the difference in winding on the inner (center) and outer part of the toroid?

 

[Simon Bridge]

Hmmm ... there are two possible "inside"s to a toroid :)

You can use amphere's law to work out how the magnetic field varies in the plane of the toroid and see.
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/toroid.html

At first glance I'd kinda expect a small magnet placed close to the center of a toroid to zip around in a circle. This motion would add a load to the circuit powering the toroid. If it went too fast it would hit the outer edge. You seem to have something on your mind.

 

[sardar]

I can explain that the movement of a permanent magnet inside an electromagnetic toroid will depend on the strength and direction of the magnetic field created by the toroid. When a permanent magnet is placed inside a toroid, it will experience a force due to the interaction between its magnetic field and the magnetic field of the toroid.

If the toroid is completed and power is applied, an electromagnetic field will be generated, which will interact with the magnetic field of the permanent magnet. The direction and strength of this interaction will determine the movement of the magnet.

If the magnetic field of the toroid is stronger than the magnetic field of the permanent magnet, the magnet will be pulled towards the center of the toroid and may even be immobilized at the center due to the strong magnetic field. On the other hand, if the magnetic field of the toroid is weaker than the magnetic field of the permanent magnet, the magnet may not move at all or may be pushed towards the outer edge of the toroid.

In summary, the movement of the permanent magnet inside the electromagnetic toroid will depend on the strength and direction of the magnetic fields involved. It is also important to note that the movement may not be uniform and may vary depending on the dimensions and materials used in the construction of the toroid. Further experimentation and analysis would be required to fully understand the behavior of the magnet in this scenario.