A tungsten wire, 0.5 mm in diameter, is just stretched between two fixed points at a temperature of 40^@C . Determine the tension in the wire when the temperature falls to 20^@C . (coefficient of linear expansion of tungsten = 4.5 xx 10^(-6)//""^@C, Young's modulus of tungsten = 3.45 xx 10^11Nm^(-2) )

A tungsten wire, 0.5 mm in diameter, is just stretched between two fix

1.	A tungsten wire, 0.5 mm in diameter, is just stretched between two fixed points at a temperature of 40^@C . Determine the tension in the wire when the temperature falls to 20^@C . (coefficient of linear expansion of tungsten = 4.5 xx 10^(-6)//""^@C, Young's modulus of tungsten = 3.45 xx 10^11Nm^(-2) )
Answer» 6.097N 3.097N 5.097N 7.097N ANSWER :1