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Force of magnetism?

Endercreeper01
in Modern and Theoretical Physics

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How do you calculate a magnetic field B?

 

As you will have noted from your question regarding rolling friction - you need to be more precise in your questions. The details of (electric and) magnetic fields make up many weeks work in a physics degree - which bit do you want to know about ?

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As you will have noted from your question regarding rolling friction - you need to be more precise in your questions. The details of (electric and) magnetic fields make up many weeks work in a physics degree - which bit do you want to know about ?

I want to know the part about how you calculate how strong a force is between 2 magnets and the magnetic field, B.

That's actually a really difficult question to answer - there are many different models, approximations, or constraints that one can use to get to an answer; but a general simple solution is hard to find

 

http://en.wikipedia.org/wiki/Force_between_magnets

 

The force on a moving charge is much more easily calculated and is a good start to reading

 

http://en.wikipedia.org/wiki/Force_between_magnets

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