Question

A brass wire 2 m long at 27^@C is held taut with negligible tension between two rigid supports. If the wire is cooled to a temperature of -33^@C, then the tension developed in the wire, its diameter being 2 mm, will be (coefficient of linear expansion of brass=2.0xx10^(-5)//^(@)C and Young's modulus of brass =0.91xx10^(11)Pa)

Answer 1

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