Science, asked by pramilabhondave8777, 28 days ago

Explain one good use of expansion

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Answered by trisha8970

1

Answer:

Automatic fire alarm is an example of expansion on heating, which is put to good use. The fire alarm works on the principle that different solids expand differently when heated. An automatic fire alarm consists of a bimetallic strip which have two different metals strips, iron and brass, bolted together firmly.

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