In this lab we were charged with the duty of running a generator powered off of our own bodily energy. For this lab we used the Lego Mindstorm technology and software to power and capture our results.

In this experiment we were asked to explore Faraday’s law. The law states that changing magnetic fluxes through coiled wires generate electricity currents and voltage. Our assignment was to measure the voltage produced shaking an old flashlight. We hooked up the equipment to lab view and became working.When the generator was shaken weakly it produced very little voltage. When shaken hardly the voltage produced was much higher.  Our data shows that the voltage increases the higher the number of shakes. Whether the movement was small or large there was always something produced. The magnet that was in the generator was what produced the voltage.

After doing the procedure, here’s the data my partner and I came up with, it was impossible to me to get the excell file, so I attach pictures of the screen:

Here we can see the sum of squares,

The numerator of this fraction involves a sum of squared deviations from the mean. The formula for this total sum of squares is

Σ (xi – x̄)2.

Here the symbol x̄ refers to the sample mean, and the symbol Σ tells us to sum the differences (xi – x̄) for all i.

The Sum of Square is also needed to square the voltage.  Each sum of square data plot represented 30 data points

Our finding was simple, as we increased the number of shakes, the voltage was increased, just as logic would tell us, but again, the theory was proven by practice.