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A steel wire 2 mm in diameter is just st...

A steel wire 2 mm in diameter is just stretched between two fixed points at a temperature of `20^(@)C.` If the temperature falls to `10^(@)C,` then the tension in the wire is (The coefficient of linear expansion of steel = `11xx10^(-6)//^(@)C` and Y for steel `2.1 xx10^(11)N//m^(2))`

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