A bimetallic strip made of brass and iron is heated. Brass expands more than iron for the same increase in temperature. In which direction will the strip bend?
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Worked Solution
Step 1: Brass expands more than iron.
Step [2-9]: The material expanding more must take the longer path (outer curve).
Step [2-9]: Therefore, the strip curves towards the iron side.
Correct answer: It will bend towards the iron side.
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