Neodymium ball magnet field alignment

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SUMMARY

Creating an entirely north-polarized neodymium ball magnet is impossible due to the fundamental properties of magnetism. When a magnetized neodymium ball is sliced in two, each half retains its own north and south poles, resulting in two separate magnets. Additionally, designing a ball with embedded neodymium rods, all oriented with their north poles outward, would not create a functional magnet; the configuration would not produce a magnetic field outside the sphere, rendering it ineffective as a magnet.

PREREQUISITES
  • Understanding of basic magnetism principles
  • Familiarity with neodymium magnets and their properties
  • Knowledge of magnetic field concepts
  • Basic physics concepts related to magnetization
NEXT STEPS
  • Research the principles of magnetic field generation
  • Explore the properties of neodymium magnets in detail
  • Learn about the effects of magnet orientation on magnetic fields
  • Investigate the physics of magnetization at the atomic level
USEFUL FOR

Physics students, hobbyists interested in magnetism, engineers working with magnetic materials, and anyone looking to deepen their understanding of magnet properties and configurations.

r3born
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If a magnetised neodymium ball has a definite north and south point, could you slice the ball in two, and weld 2 "north" halves together, to create an entirely north ball? If this is impossible, how about designing a ball made in, say, a 3D printer, then embed it with small magnetised neodymium rods, all with the North point facing outwards? Would this give you an entirely/mostly "north" ball?
 
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because magnetization happens at a very small level, when you cut a magnet in two, you actually get two magnets each with its own north and south.
 
gsal said:
because magnetization happens at a very small level, when you cut a magnet in two, you actually get two magnets each with its own north and south.

Figured that would be the answer for the first approach, how about the second idea? how would the individual magnets interact with each other?
 
That would be a complicated NO magnet at all. There would be no B field outside the sphere.
 
clem said:
That would be a complicated NO magnet at all. There would be no B field outside the sphere.

How would said sphere react to a second, separate magnet?
 
It wouldn't.
 
Vanadium 50 said:
It wouldn't.

Any chance of some elaboration? (if that's possible) Sorry for being a pain!
 
We have told you that such a configuration is not a magnet. What more can be said?
 
Hoping to learn the "why", only now getting into physics and there's still much to learn for me.
 

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