
#1
Dec2310, 05:24 PM

P: 10

Hello there,
I was wondering how much force can two opposing negative magnets hold. If you had two magnets levitating for example, how much weight would they hold up. So, I was wondering if there is some kind of equation for this with the strength of the magnets as the variable. 



#2
Dec2310, 05:55 PM

P: 3,390

If you are using electromagnets it might be slightly easier because you can simply work to current values.
More current = stronger magnetic field. So you can increase the lifting force by increasing the current through the coil and simply use current values to show the lifting force. I'd recommend starting here: http://en.wikipedia.org/wiki/Magnetic_levitation Perhaps under the lift section. 



#3
Dec2310, 09:31 PM

P: 10





#4
Dec2410, 05:38 AM

P: 3,390

Equation For Levitating Magnets?
No, the force would be the same for stationary or eletromagnet.
The wiki link gives some equations, but I was never good with magnetism so I can't be of much more help unfortunately. 



#5
Jan711, 11:11 PM

P: 220

You should get an acrylic 'tube' and two cylindrical magnets and drop them in there and see how much weight it takes to make them touch. If you know the strength of the magnets it would seem pretty easy to calculate. To me that seems easier and more accurate that an equation, though more expensive. I know thats not the answer you were looking for but whats wrong with some real life experimentation.



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