Calculating the theoretical force of repulsion between two magnets

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SUMMARY

The discussion focuses on calculating the theoretical force of repulsion between two magnets, emphasizing that factors such as distance, relative NS direction angle, and magnet size significantly influence the force. The participants clarify that the commonly referenced formula pertains to hypothetical magnet charges, where north and south poles are considered separable. The correct relationship is identified as inverse square rather than inverse exponential or inverse quadratic, highlighting the complexity of magnet interactions.

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  • Familiarity with mathematical concepts of force and distance
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  • Basic grasp of magnetic pole orientation and configurations
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B-RY
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Homework Statement
I have been asked to complete a student experiment in which I decided to describe the inverse exponential relationship between the force of repulsion and the distance between two magnets.

I was wondering whether it be possible to calculate the theoretical value for the force at each distance?
Relevant Equations
I found this formula on the internet: F=K((m1m2)/((mu)xr^2))
Any help would be much appreciated! Thanks
 
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Not only distance but relative NS direction angle and even size of magnet matter. The general formula between the magnets is rather complicated. The formula you referred is force between hypothetical magnet charges as if N and S were separable. https://en.wikipedia.org/wiki/Force_between_magnets shows some examples of various configurations.
 
Thankyou!
 
B-RY said:
the inverse exponential relationship between the force of repulsion and the distance between two magnets.
Inverse exponential!?
Inverse quadratic maybe.
 
haruspex said:
Inverse exponential!?
Inverse quadratic maybe.
Inverse square. My bad.
 

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