Suppose a bimetallic strip is constructed of two strips of metals with linear expansion coefficients α 1 and α 2 , where α 1 > α 2 .
a) If the temperature of the bimetallic strip is reduced by ∆ T , what way will the strip bend (toward the side made of metal 1 or the side made of metal 2)? Briefly explain.
b) If the temperature is increased by ∆ T which way will the strip bend?
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