We first viewed the difference between a magnetic pin and nonmagnetic pin. The magnetic pin has all its small molecular poles pointing in one direction, which causes a net magnetic affect. We found that heating a magnet will destroy its magnetic property.
We then wrote an equation for torque on a current loop of t = u x B. u = IA. Above we solved a sample problem involving torque.
Here is a St. Louis motor, which is run off of a normal battery, which magnetizes the wires around the center loop. This interacts with the magnets on the side and creates motion
We attempted to make our own motor, but could not get it to work. Instead we took a video of another group who made a simpler motor work.
We also saw the magnetic field around a current carrying wire
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