5K40.80 - Hand Crank Generators - Genecon
Video Credit: Jonathan M. Sullivan-Wood.
These should be ready to go once you set them out on the table. The larger generators you may want to clamp down if you are trying to crank them very fast.
CAUTION: The two large generators put out up to 120 VAC so you need to be careful where you put your hands when cranking the generator so that you do not become the light bulb.
Bipolar LED's may be used to show polarity reversal. The generators will have to be cranked very slowly to see this effect. Faster cranking of the AC generator will produce yellow (red+green=yellow).
The generator flashlight with the external wires will produce a very nice sine wave when connected to the oscilloscope. The small crank generator also produces fair sine waves when viewed on the oscilloscope. The large crank generator produces waves with spikes when viewed on the oscilloscope and is not the preferred one to use.
Using the Genecon generators: A subtle comparison can be made between an inductor and a capacitor using a hand crank DC generator. When connected to the capacitor, the generator is hard to crank at first and gets easier to crank as you continue. When you quit cranking the generator will keep going on its own in the same direction as you cranked it. Do the same with an inductor and it gets harder to crank as you continue and when you let go, it stops and turns in the opposite direction you originally cranked it.
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