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horlacsd (November 30, 1999 at 12:00 am)
Hey just being anal here... around 1:20, when explaining the force that the wire experiences (F= q*(vXB)).
Since positive charge, and given the permanent magnetic field lines (North - South), the top of the loop should experience a force OUT of the screen, and the bottom should experience a force INTO the screen. Awesome vid though, umma build one asap!
pookyking2 (November 30, 1999 at 12:00 am)
we doin this in 9th grade for some reason
MileyandMandyfan3 (November 30, 1999 at 12:00 am)
we did this in school, i think in 6th grade...
antisp13 (November 30, 1999 at 12:00 am)
too fast man
horizonflyer9 (November 30, 1999 at 12:00 am)
what wire gauge (AWG) should i use?
omgwhy93 (November 30, 1999 at 12:00 am)
uuumm is the battery supot to get hot ahhh??? this is my firt time doing this and it ant working
wolvesXD (November 30, 1999 at 12:00 am)
why so fast?
dantheman11995 (November 30, 1999 at 12:00 am)
why so fast?
and what to be used for?
geeleegoat (November 30, 1999 at 12:00 am)
I guess the inertia of the coil carries it through, although I suspect the efficiency is drastically reduced. A more efficient configuration using DC without commutation would be the unipolar motor. You've probably seen lots on YouTube. Anyway, thanks for the input.
Cheers.
krankiev (November 30, 1999 at 12:00 am)
it works just fine, I can see how it might help to commutate or pulse the current but it's not necessary. the wires to get a bit of black carbon buildup that has to be cleaned off. It might have more speed and power with pulsing/ commutating current though. |