# Calculating the theoretical force of repulsion between two magnets

• B-RY
B-RY
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

Gold Member
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.

B-RY
Thankyou!

Homework Helper
Gold Member
2022 Award
the inverse exponential relationship between the force of repulsion and the distance between two magnets.
Inverse exponential!?