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39 votes
A bicycle dynamo emits light only when the bicycle is on motion,why​

User Beluchin
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1 Answer

11 votes
11 votes

Answer:

because the friction/movement of the bikes wheels, generates electricity and energy that the light can use to generate electricity and it also does not have a battery on it and relies on the wheels to generate the electricity for the light to work.

Step-by-step explanation:

User Dwilson
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