In Class we conducted an experiment that will prove Faraday’s Law to us. Faraday’s Law says that any change in the magnetic environment of a coil of wire will cause a voltage to be transferred in the coil. We used a flashlight for our experiment that had a magnet inside, and when shaken would move through a coil of wires. Kinetic energy was created when we shook the flashlight. The computer measured how much energy was created. We shook the flashlight for thirty seconds and counted the number of shakes. Later we had to use Excel to get the sum of the squares of the voltages. Unfortunately, when we thought we had sent our data of collection to us, we thought wrong. Our data was not sent in the correct file format, therefor everything was lost.
Instead I would like to present to you guys a little bit of background information on Faraday’s Law.
August 29th, 1831 marks the day Faraday had his first experiment where he worked with electromagnetic induction by wrapping two wires around opposite sides of an iron ring. Faraday thought that when the current went into one wire, a wave would go through the ring and make an effect on the other side. One wire was plugged into the galvanometer, and the other wire to the battery. A wave of electricity traveled through one wire when he connected it, and to the other when the wire was disconnected. The reaction was because of a magnetic flux that took place when the wires were connected to the batter. This was his first revelation, and later he got more. He did what we did in class, slid a magnet in between wires of coil. And he also “rotated a copper disk near the bar magnet with a sliding electrical lead”.