Hi all,

I have several magnets (bars) of well known size.

These magnets are placed on a table and they can rotate around their
center until they reach a stable state.

I want to know if there are some mathematical formulas which can
describe the interaction in this system.

I've found a formula which describes the force between two identical
cylindrical bar magnets placed end-to-end.

But, I need a more general formula where multiple magnets are involved
and are not always placed end-to-end.

Is there such formula?

thanks,
laura

"laura" wrote in message
oups.com...
Hi all,

I have several magnets (bars) of well known size.

These magnets are placed on a table and they can rotate around their
center until they reach a stable state.

I want to know if there are some mathematical formulas which can
describe the interaction in this system.

I've found a formula which describes the force between two identical
cylindrical bar magnets placed end-to-end.

But, I need a more general formula where multiple magnets are involved
and are not always placed end-to-end.

Is there such formula?

Of course there is but many body problems get complex fast. Google is
your friend. Sounds like a homework question. ;-) Think about how the
magnetic force is generated in the first place. It is a bunch of
smaller magnets free to rotate in any direction. Your problem is
basically a 2D version of the 3D problem.

FrediFizzx

Quantum Vacuum Charge papers;
http://www.vacuum-physics.com/QVC/qu...uum_charge.pdf
or postscript
http://www.vacuum-physics.com/QVC/qu...cuum_charge.ps
http://www.arxiv.org/abs/physics/0601110
http://www.vacuum-physics.com