This lab was aimed at proving Faraday’s law. Faraday’s law states that a change in magnetic flux through coiled wires will generate an electrical current and voltage. It also states that the greater then change in magnetic flux, the greater the generated current and voltage will be. This was demonstrated through a combination of an NXT attachment as well as a generator apparatus taken from a flashlight.
By shaking the light the magnet passes through the coil and thus generates an electric charge. The NXT read the voltage generated over a 30 second period and saved it to an excel table. We then took the sum of the square values it recorded to determine the level of electrical charge. We can see that as the number of shakes increases, the current and voltage increase.
After some initial confusion the lab ended up successfully proving Faraday’s Law despite a two minor problems:
Data not recording properly
Narrow set of data (most of the data falling between 90 and 120 shakes)