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An aluminium rod with another alloy are bonded together at 20∘C to form a bimetal sensor. The length of the bimetal rod at 20∘C is 10 m. How much the rod will expand (in mm) when the temperature is changed from 0∘C to 100∘C? The expansion coefficient of aluminium is 2.5×10−6/∘C.25

Answer» An aluminium rod with another alloy are bonded together at 20∘C to form a bimetal sensor. The length of the bimetal rod at 20∘C is 10 m. How much the rod will expand (in mm) when the temperature is changed from 0∘C to 100∘C? The expansion coefficient of aluminium is 2.5×10−6/∘C.
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