1. Why is a generator armature more difficult to rotate when it is connected to and supplying electric current to a circuit.
2. Some bicycles have electric generators that are made to turn when the bike wheel turns. These generators provide energy for the bike’s lamp. Will a cyclist coast farther if the lamp connected to the generator is turned off?
Tags: electric current, electric generator, bike wheel <BR/>Republished by Blog Post Promoter
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1. Because the generator is pulling energy from the mechanical motion and changing it into electrical energy. It can only do this when there is an electrical load connected.
When I was in electrical engineering school, I found this very surprising – we had a hand crank generator that you could connect loads to. It really made me understand.
2. Yes – from long experience I can tell you the cyclist can feel the drag of the generator.