PIRA
5K40.81 Motors & Generators: Small Hand Cranked Generators & Flashlight
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Photo of the Demonstration at the University of Texas at Austin.
Instructions / Notes:
- Light a bulb with a small hand cranked generator.
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After about 3 or 4 seconds of cranking, the internal friction of the generator increases
due to the resistance of the heated filament in the bulb.
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The generator which is enclosed in a plexi-tube can be handed to students and passed around.
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Demo Staff: The bulb in the hand-held flash light is often loose and needs to be tightened.
Last Updated 02/04 - University of Texas at Austin Physics Dept.
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