dumb question about ELECTROmagnets

[Low-Q]

Are you using ac or dc to power them?

That shouldn't change the situation if the phase of the current flow in one of them are 0^o or 180^o, they will attrack or repel regardless of AC or DC.

br.

Vidar

[GeoscienceStudent]

This is a great question and the following answers after have answered some of my questions too.  I had a problem not being able to get a monopolar magnet motor to work.  But the magnets would attract on both sides, having no repellation.  I thought maybe I had a faulty magnet, so I went and got real strong ones, (though they kept moving across the table on me attracted to everything) then the motor worked.  (it's just making the wire go around, not harnessing any energy)
So these cheapo magnets, does this mean some of them even though the same type might have some stronger than another? 
2nd question.  On these monopolar motors, you put a battery on top of a magnet (on the negative side of the battery) then a wire on the top of the battery (positive side) then two sides ( I can't get the curled type to work) coming down to either side of the magnet, slightly curled and it spins.  The battery works for about 2 hours gets hot and quits.  Are we really forming a dipole here?  I'm a little skeptical about "monopolar" and wondering if we created a dipole from the magnet attached on the negative side ?  I don't know?


Beck  (trying to learn what you'll never see in school)

[armagdn03]

Sorry to burst your bubble, but you will never ever have a mono pole magnet, simply cannot be done. You can adjust geometries so that one pole is not as apparent, but it will always be there and it will always be exactly as strong as the opposite pole. If you were to find such a thing you would have something even more impossible than overunity  j/k........

[GeoscienceStudent]

Sorry to burst your bubble, but you will never ever have a mono pole magnet, simply cannot be done. You can adjust geometries so that one pole is not as apparent, but it will always be there and it will always be exactly as strong as the opposite pole. If you were to find such a thing you would have something even more impossible than overunity  j/k........

You didn't burst any bubbles.  I was skeptical from the beginning, because it did not make sense with what I read about dipoles, and the magnets are attached to the negative side. The energy apparently does not come from within the battery but is obtained when the dipole and electromagnetic field is formed.  1/2 energy goes to loads and losses, and 1/2 destroys the dipole.  It has to use up the battery reforming this dipole.  I tested my idea that this was occuring (I may not have explained it perfect, sorry) by running it till it ran out of battery power.  Looks like a dipole to me.  Am I wrong?

I also noticed when I turn the magnets over, the wire changes direction running clockwise, or counterclockwise depending on which side the magnets are on.

Beck

[2b]

> Sorry to burst your bubble, but you will never ever have a mono pole magnet, simply cannot be done.

i don't know if this is true, because i have seen respectable people connect magnets in such a way so that they are effectively monopole magnets, eg, you can take several magnets and arrange them in such a way that one pole cancels itself out, and the cluster functions as a monopole.