Attraction and repulsion between two magnets

AI Thread Summary
Calculating the force of attraction or repulsion between two magnets requires specific details such as their dimensions, orientations, and strengths. Factors like the length, radius, and relative permeability of the magnets are crucial for accurate calculations. Additionally, knowing the magnetic moment and the Tesla measurements at various distances can aid in modeling the interaction. The discussion highlights the complexity of magnet interactions, especially when they are not aligned parallel to each other. Comprehensive resources on this topic are limited, making it challenging to find precise formulas.
kalesh
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Hi,
I hope this is the correct place to ask this.
Does anyone know of a formula to calculate the force of attraction or repulsion between two magnets of diffirent sizes and strengths?
Also the magnets are not parallel to each other.
Any help highly appreciated.
 
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It depends on the specific dimensions, locations and orientation of the magnets.
Give some specifics.
 
Cross-linking from https://www.physicsforums.com/showthread.php?t=484015

Meir Achuz said:
It depends on the specific dimensions, locations and orientation of the magnets.
Give some specifics.

Hmmm, okay. Let's say you have two cylindrical magnets of length, L, radius, r, relative permeability k. What else do you need to know? Would you need to know how many Tesla are measured at different distances from the material? Would it help to know the magnetic "moment" of the magnets? Can you model it as though the magnets each consisted of two "monopoles," each subject to an Force = inverse square distance law?

There is info about the torque all over the place, but its hard to find anything about the attraction and repulsion of magnets.
 
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