On today’s lab we worked again with the NXT robot. This time we used a flashlight that was connected directly to the robot. Inside of the flashlight there was a single battery. The whole idea of the experiment was to measure the voltage that it was created when we shook the flashlight. Demonstrating the Faraday’s law, which predicts how an electric circuit induces a magnetic field that can produce electromotive force.

Here’s a picture of the flashlight connected to the NXT.

We first shook it 130 times, after that we shook it 90, 60, and 40 times. We got the results and compared them in a chart.

Here’s the chart.

Although the lab was very short, it was fun, interesting and educative. It is always good to practice experiments like these and not only read the theory.