Questions
Calculate the compressional force required to prevent the metallic rod of length l cm and cross-sectional area A cm2 when heated through t°C, from expanding along length wise. The Young's modulus of elasticity of the metal is E and mean coefficient of linear expansion is a per degree Celsius
detailed solution
Correct option is B
Natural length of the rod at t°C = l + lαtdecrease in natural length due to stress = ∆lΔ1−Δ=0;E=−F(l+Δ)AΔ;F=−EAat1+atTalk to our academic expert!
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A steel rod of length 5 m is fixed rigidly between two supports. of steel , With the increase in its temperature by . the stress developed in the rod is
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