A steel wire of cross sectional area 2 mm^(2)is just stretched horizontally between two fixed points at a temperature of 35^(0)C. The temperature of the wire changed to 25^(0)C. Then (Cofefficient of linear expansionpof steel=11 xx 10^(-6)//""^(0)C : Y_("steel") = 2xx10^(11)Nm^(-2))

A steel wire of cross sectional area 2 mm^(2)is just stretched horizon

1.	A steel wire of cross sectional area 2 mm^(2)is just stretched horizontally between two fixed points at a temperature of 35^(0)C. The temperature of the wire changed to 25^(0)C. Then (Cofefficient of linear expansionpof steel=11 xx 10^(-6)//""^(0)C : Y_("steel") = 2xx10^(11)Nm^(-2))
Answer» the THERMAL strain is `11xx10^(-5)` the thermal stress is `2.2xx10^(7)N//m^(2)` the tension in the wire at temperature`25^(0)C`is 44N all the above ANSWER :4