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A bi-metal strip element has one end fixed and the other free, the length of the cantilever being 40 mm. The thickness of each

A bi-metal strip element has one end fixed and the other free, the length of the cantilever being 40 mm. The thickness of each metal is 1 mm and the element is initially straight at 20C. Calculate the movement of the free end in a perpendicular direction from the initial line when the temperature is 180C, if one metal is invar and the other is a nickel chrome- iron alloy of linear coefficient of expansion. 12.5x106/ C

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