Questions on magnets (multiple so I don't spam the forum)

[Nobody7heGreat]

TL;DR Summary

One is it possible and multiple questions based on it (if it's not then the other questions are void)

I want to start this post by saying I don't know much and I'm asking everything here so I don't fill the forum with a million questions. I apologize if this is not how it is done.
My questions are...

Is it possible for a magnet to be in the shape of a hollow ball?


1. Would it pull? push? or neither?

2. What happens if you spin a magnetic material of this shape?

3. If the inside were somehow more magnetic than the outside would it change the answer to question 1?

 

[Dale]

Is it possible for a magnet to be in the shape of a hollow ball?

It is possible for a magnet to be in the shape of a hollow ball, but its magnetic field will not be spherically symmetric. It will have, at least, a dipole moment and possibly higher moments.

1. Would it pull? push? or neither?

2. What happens if you spin a magnetic material of this shape?

It would behave the same as other magnets with similar magnetic fields.

3. If the inside were somehow more magnetic than the outside would it change the answer to question 1?

No.

 

[Nobody7heGreat]

It is possible for a magnet to be in the shape of a hollow ball, but its magnetic field will not be spherically symmetric. It will have, at least, a dipole moment and possibly higher moments.

It would behave the same as other magnets with similar magnetic fields.

No.

Thank you thank you