5H40.u2 - Lorentz Electric Train
Demonstrates a simple electric train consisting of a AAA-battery, 2 magnets, and a coil of wire. The dominant force present is the Lorentz Force.
Connect the magnets to the ends of the AAA-battery using the washer spacers to help keep the magnets centered on the battery. The orientation of the magnets should be N-S--Battery--S-N or the opposite, S-N--Battery-N-S. Using squeezee clamps, clamp down the brass spring approximately 4ft in length (can go shorter or longer). Place the battery train into the coil and watch it travel.
With the brass spring clamped down, make sure the magnets are connected to the ends of the AAA-battery using the washers as spacers to keep the magnets centered. Make sure the orientation is correct. Place the battery train into the coil and watch it travel. If you put it in backwards, the force produced will push the train back out of the coil. If you flip one of the magnets so that the orientation is N-S--Battery--N-S, then the forces on the train add to become zero and the train will not move. If you flip over the other magnet, so that the train is in the opposite orientation than what you started with, then the train will travel the opposite direction through the coil.