Question

Bending of bimetallic strip is due to --------------expansion.
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Answer 1

hope it helps you friend

Explanation:

The different expansions force the flat strip to bend one way if heated, and in the opposite direction if cooled below its initial temperature. The metal with the higher coefficient of thermal expansion is on the outer side of the curve when the strip is heated and on the inner side when cooled.

Answer 2

Answer:

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