5/19 Electromagnet Induction

We answered 13 questions from the website on Robert's laptop. The interactive graph on the website showed us the relationship between emf and flux.

We did another series of questions on the same website. This time it was to find how inductors and resistors affected the current through a closed circuit. We found that the area of the inductor directly relates to the magnetic flux. If area increases, the flux increases and vice versa. 

We sent a current counterclockwise around the magnet and saw that it created an electromagnetic force pulling the rod toward the magnet.

We then reversed the current's direction and found that it produced an emf pushing the rod away from the magnet.

On the left, we found the relationship between an induced current and an induced voltage. In light green, we found the inductance, L, of the rod when given the length, radius, and number of turns around the rod. In purple, we found the units of Inductance from the formula V = LdI/dt.

We did another series of questions on the same website. This time we found the relationship between induced emf, current, time, and the magnetic flux.

We made our graphs of time versus current and time versus voltage where there is an inductor in the circuit. On the bottom, we predicted that current would eventually reach a limit. On the top, we found that the actual graph for current is that the current would automatically reach its peak when after a certain period of time because the inductor resists the immediate change of voltage. So its basically the bottom graph except with the first half missing.