A steel wire of cross-sectional area `0.5mm^2` is held between two fixed supports. If the wire is just taut at `20^@C`, determine the tension when the temperature falls to `0^@C`. Coefficient of linear expansion of steel is `1.2 xx 10^(-5 @)C(-1)` and its Young's modulus is `2.0 xx 10^11 N m^(-2)`.

A stell wire of cross-sectional area 0.5mm^2 is held between teo fixed supports. If the wire is just taut at 20^C , determine the tension when the temperature falls to 0^C . Coefficient of linear expansion of steel is 1.2 xx 10^(-5) 0^C(-1) and its Young's modulus is 2.0 xx 10^11 N m^(-2).

A wire of cross-sectional area 3 mm^(2) is first stretched between two fixed points at a temperature of 20^(@)C . Determine the tension when the temperature falls to 10^(@)C Coefficient of linear expansion alpha=10^(-5).^(@)C^(-1) and Y =2 xx10^(11) N//m^(2)

A wire of cross sectional area 3mm^(2) is just stretched between two fixed points at a temperature of 20^(@) . Determine the tension when the temperature falls to 20^(@) C . Coefficient of linear of expansion alpha = 10^(-5)//"^(@)C and Y = 2 xx 10^(11)N//m^(2) .

A steel wire, 2mm in diameter, is just stretched between two fixed points at a temperature of 30^@C . Determine its tension when the temperature falls to 20^@C . (Coefficient of linear expansion of steel = 0.000011//""^@C , Young's modulus for steel = 2.0xx10^11Nm^(-2))

A wire 2 mm in diameter is just stretched in between two fixed points at a temperature of 50^(@)C . Calculate the tension in the wire, when the temperature falls to 30^(@)C . Coefficient of linear expansion is 11 xx 10^(-4) l^(@)C and Young modulus is 2.1 xx 10^(11) N m^(2)

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 wire of cross sectional area 3 mm^(2) is just stretched between two fixed points at a temperature of 20^(@)C . Then the tension in the wire when the temperature falls to 10^(@)C is, (alpha =1.2 xx 10^(-5) //""^(@)C, Y=2xx10^(11) N//m^(2))

A steel wire of length 20 cm and unifrom crossection mm^(2) is tied rigidly at both the ends. If temperature of the wre is altered from 40^(@)C to 20^(@)C , calcutlate the change in tension. Given coeffeicient of linear expansion of steel is 1.1 xx 10^(-5) .^(@)C^(-1) and Young's modulus for steel is 2.0 xx 10^(11) Nm^(-2) .