Faraday’s Law explains the change of magnetic field can create voltage and cause current to flow in wires. Basically, Faraday realized the change in magnetic field (magnetic flux) and size of the field relate to the current created. The generator experiment is based on this law to indicate the number of shakes will generate a higher voltage. In this lab, the NXT and lab view were used to retrieve the voltage within 30 secs. My lab partners and I had to count the number of shakes for each trial. After the shakes, the lab view showed list of voltages for every trial. The sum of voltages was squared. The highest voltage is 441.3 with 150 shakes. Based on my data, it shows the voltages increase as the shakes increase.
http://www.physics4kids.com/files/elec_faraday.html (reference)
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html (reference)
Shakes Sum of squared voltages
0 | 0.1 |
77 | 270.1 |
71 | 225.5 |
150 | 441.3 |