A steel bar of cross sectional area `1 cm^(2)` and `50 cm` long at `30^(0)C` fits into the space between two fixed supports.. If the bar `s` now heated to `280^(0)C`, what force will it exert against the supports ? (`*` for steel `= 11 xx 10^(6//0)C` and Young's modulus for steel `= 2 xx 10^(11) N//m^(2)`)

A steel bar of cross sectional area 1 cm square and 50 cm long at 30^(@)C fits into the space between two fixed supports. If the bar is now heated to 280^(@)C , what force will it exert against the supports ? ( alpha for steel = 11xx10^(-6)//""^(@)C and Young's modulus for steel = 2xx10^(11)N//m^(2) .

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 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 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 steel wire of uniform cross-sectional area 2mm^(2) is heated upto 50^(@) and clamped rigidly at two ends . If the temperature of wire falls to 30^(@) then change in tension in the wire will be , if coefficient of linear expansion of steel is 1.1 xx 10^(-5)//"^(@)C and young's modulus of elasticity of steel is 2 xx 10^(11) N//m^(2)

A steel rod of cross-sectional area 1m^(2) is acted upon by forces as shown in the Fig. Determine the total elongation of the bar. Take Y = 2.0xx10^(11) N//m^(2)

A steel wire 2 mm in diameter is just stretched between two fixed points at a temperature of 20^(@)C. If the temperature falls to 10^(@)C, then the tension in the wire is (The coefficient of linear expansion of steel = 11xx10^(-6)//^(@)C and Y for steel 2.1 xx10^(11)N//m^(2))

A steel wire 2 mm in diameter is just stretched between two fixed points at a temperature of 20^(@)C. If the temperature falls to 10^(@)C, then the tension in the wire is (The coefficient of linear expansion of steel = 11xx10^(-6)//^(@)C and Y for steel 2.1 xx10^(11)N//m^(2))