There is some change in length when a 33000 N tensile force is applied on steel rod of area of cross-section`10^-3m^2`. The change of temperature required to produce the same elongation, if the steek rod is heated, is (he modulus of elasticity is 3 x `10^11` N/`m^2` and the coefficient of linear expansion of steel is 1.1 x `10^-5`/`circ`C)