B How is a magnetic field formed in a space surrounded by one pole?

  • B
  • Thread starter Thread starter hongseok
  • Start date Start date
  • Tags Tags
    Field Magnetic
AI Thread Summary
A hollow spherical magnet with inner n-poles and outer s-poles raises questions about magnetic field formation in its empty space. The absence of an s-pole for the n-pole's magnetic force lines challenges the notion of magnetic field creation within the sphere. It is suggested that as magnetic modules are assembled, existing field lines may pass between them, leading to a cancellation of the total magnetic field. This assembly process requires energy and can result in a net zero magnetic field, with only minor identifiable poles remaining. The discussion highlights the complexities of magnetic interactions in such configurations.
hongseok
Messages
20
Reaction score
3
TL;DR Summary
How is a magnetic field formed in a space surrounded by one pole?
There is a magnet in the shape of a hollow sphere. And the inner surfaces are all n-poles, and the outer surfaces are all s-poles. At this time, how is the magnetic field formed in the empty space of the sphere? There is no s pole for the magnetic force lines from the n pole to enter, so can magnetic force lines be created? Also, if only magnetic force lines are generated from the s-pole to the n-pole inside the magnet, the number of magnetic force lines entering and exiting the magnet must be the same, so won't it interact with magnets outside the spherical magnet? These may not seem to make sense. What actually happens in these situations?
 
Physics news on Phys.org
hongseok said:
There is a magnet in the shape of a hollow sphere. And the inner surfaces are all n-poles, and the outer surfaces are all s-poles
Thereis? Where is said magnet? One cannot build such an object.
 
hongseok said:
TL;DR Summary: How is a magnetic field formed in a space surrounded by one pole?

There is a magnet in the shape of a hollow sphere. And the inner surfaces are all n-poles, and the outer surfaces are all s-poles. At this time, how is the magnetic field formed in the empty space of the sphere? There is no s pole for the magnetic force lines from the n pole to enter, so can magnetic force lines be created? Also, if only magnetic force lines are generated from the s-pole to the n-pole inside the magnet, the number of magnetic force lines entering and exiting the magnet must be the same, so won't it interact with magnets outside the spherical magnet? These may not seem to make sense. What actually happens in these situations?
One bar magnet is a dipole. Two bar magnets is a quadrupole. Four bar magnets is an octopole. Etc.

As you add more dipoles you get higher order multipoles. You do not get a monopole.
 
  • Like
Likes pines-demon and Vanadium 50
hongseok said:
And the inner surfaces are all n-poles, and the outer surfaces are all s-poles. At this time, how is the magnetic field formed in the empty space of the sphere?
As the magnetic modules are assembled to form the shell, the existing magnetic field lines will pass between the modules. Energy will be required to assemble the modules, which will result in cancellation of the total magnetic field. Some magnets will be weaker than others, so the resulting field will be sum zero, with some minor N and S poles identifiable.
 
  • Like
Likes sophiecentaur
Thread 'Is there a white hole inside every black hole?'
This is what I am thinking. How much feasible is it? There is a white hole inside every black hole The white hole spits mass/energy out continuously The mass/energy that is spit out of a white hole drops back into it eventually. This is because of extreme space time curvature around the white hole Ironically this extreme space time curvature of the space around a white hole is caused by the huge mass/energy packed in the white hole Because of continuously spitting mass/energy which keeps...
Back
Top