Last Friday we had Generator Lab experiment in our science class. The idea was to observe how Faraday’s law works in real life example. Faraday’s law is about changing magnetic flux in a coil produces electricity.
For this experiment we have been given a generator (magnet that moves back and forth inside a coil of wire), a voltage probe, NXT adaptor and NXT. To make it work we had to shake the generator for thirty seconds and count amount of shakes that we had to write down in Excel sheet. The generator was connected to the computer, which was measuring the voltage for us. Its thirty numbers went to separate column in Excel as well. When all five trials were done we had to count the sum of the squares of the voltages and with our result make a linear curve.
Due to technical problems during the class my partners and me were not able to get those results so here are the results that were given us before the experiment has started:
Here we can observe that with more shakes, the voltage is higher. It proves the Faraday’s law. “The greater is the change in magnetic flux, the greater are the currents and voltages.”