Calculate the compressional force required to prevent the metallic rod of length l cm and cross
Channel: Doubtnut
Date: 2020-07-26

Calculate the compressional force required to prevent the metallic rod of length l cm and cross sectional area `Acm^2` when heated through `t^@C` from expanding lengthwise. Young's modulus of elasticity of the metal is E and mean coefficient of linear expansion is `alpha` per degree celsius.