What happens to a permanent magnet inside a electromagnetic toroid?

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When a permanent magnet is placed inside an energized toroidal electromagnet, it is expected to move due to the magnetic field created by the toroid. The magnet would likely traverse the toroid, influenced by the varying magnetic field strength between the inner and outer parts of the toroid. The motion of the magnet could potentially add load to the circuit powering the toroid, and if it moves too quickly, it may collide with the outer edge. The behavior of the magnet can be analyzed using Ampère's law to understand the magnetic field distribution within the toroid. Overall, the interaction between the permanent magnet and the toroidal field raises interesting questions about magnetic dynamics.
Miv
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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?
 
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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?
 
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?
 
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.
 
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