FACERII (Why the bulb of a dynamo glow brightly when speed of bicycle is increased and become dim when the
speed is decreased? Give reasons.)
Am
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As the bicycle moves, the wheel turns a magnet inside a coil. This induces enough electricity to run the bicycle's lights. The faster the bicycle moves, the greater the induced voltage - and the brighter the lights.

Explanation:

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the answer is otpion c) understanding

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