Can a smaller magnet still repel with the same force as a larger magnet?

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SUMMARY

The discussion centers on the relationship between the size of magnets and their repelling forces. It is established that the force between two magnets is primarily determined by their magnetic moments and orientation, rather than their physical size. If a smaller magnet replaces a larger one, its reduced magnetic moment will result in a decrease in the total repelling force, contrary to the assumption that it could maintain the same force. Proper physical units should be used when discussing magnetic forces, as repelling force is not measured in kilograms.

PREREQUISITES
  • Understanding of magnetic moments and their significance in magnetism
  • Familiarity with the principles of magnetic force and repulsion
  • Knowledge of proper physical units for measuring magnetic forces
  • Basic concepts of magnet orientation and its effects on force
NEXT STEPS
  • Research the concept of magnetic moments and how they affect magnet strength
  • Learn about the mathematical equations governing magnetic force between two magnets
  • Explore the effects of magnet orientation on repelling forces
  • Study proper units of measurement for magnetic forces, including Tesla and Newton
USEFUL FOR

Physics students, engineers working with magnetic systems, and anyone interested in understanding the principles of magnetism and magnetic force interactions.

Stoney
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Hi
Just wanted to know,

If I have two magnets of the same size with a pull force of say 30kg and use them to repel each other, the top magnet at a position close to the surface of the bottom magnet would be able to support around 30kg (I know repel force is not measured in kg). If I then replace the top magnet with a smaller one will it still be able to support around 30kg at the same position as it is still being repelled from the bottom one with around 30kg of force?

Thanks
Stoney
 
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The force between two magnets is (ideally) dependent on their orientation and the strength of their magnetic moments, which are not necessarily related to size. If you decrease the magnetic moments of one of the magnets, the total force is going to go down.

Stoney said:
I know repel force is not measured in kg
So why do you use it? Please stick to proper physical units.
 

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