Abrass wire 1.8 m long at 27 °C is held taut with little tensionbetween two rigid supports. If the wire is cooled to a temperature of–39 °C, what is the tension developed in the wire, if itsdiameter is 2.0 mm? Co-efficient of linear expansion of brass = 2.0 ×10–5K–1;Young’s modulus of brass = 0.91 × 1011Pa.

Abrass wire 1.8 m long at 27 °C is held taut with little tensionbetwe

1.	Abrass wire 1.8 m long at 27 °C is held taut with little tensionbetween two rigid supports. If the wire is cooled to a temperature of–39 °C, what is the tension developed in the wire, if itsdiameter is 2.0 mm? Co-efficient of linear expansion of brass = 2.0 ×10–5K–1;Young’s modulus of brass = 0.91 × 1011Pa.
Answer» A brass wire 1.8 m long at 27 °C is held taut with little tension between two rigid supports. If the wire is cooled to a temperature of –39 °C, what is the tension developed in the wire, if its diameter is 2.0 mm? Co-efficient of linear expansion of brass = 2.0 × 10^–5 K^–1; Young’s modulus of brass = 0.91 × 10¹¹ Pa.

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