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Steel wire of lenght ‘L’ at 40 °C is suspended from the ceiling and then a mass ‘m’ is hung from its free end. The wire is cooled down from 40 °C to 30 °C to regain its original length ‘L’. The coefficient of linear thermal expansion of the steel is 10 -5/°C, Young’s modulus of steel is 10 11 N/m 2 and radius of the wire is 1 mm. Assume that L diameter of the wire. Then the value of ‘m’ in kg is nearly

Steel wire of lenght ‘L’ at 40 °C is suspended from the ceiling and then a mass ‘m’ is hung from its free end. The wire is cooled down from 40 °C to 30 °C to regain its original length ‘L’. The coefficient of linear thermal expansion of the steel is 10 -5/°C, Young’s modulus of steel is 10 11 N/m 2 and radius of the wire is 1 mm. Assume that L diameter of the wire. Then the value of ‘m’ in kg is nearly

Grade:11

1 Answers

Saurabh Koranglekar
askIITians Faculty 10336 Points
2 years ago
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