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Two wires 1 and 2 of the same cross sectional area A=10mm^2 and the same length but made of different materials are welded together and their ends are rigidly clamped between two walls, as shown in figure. The respective young.s moduli and coefficient of linear exansions are y,_(1) = 10^(9) N//m^(2), y_(2) =2 xx 10^9 N//m^2, y_2 =2xx 10^9 N//m^2 alpha_(1) = 6 xx 10^(-4) ""^(0)C^(-1), alpha_(2) = 3 xx 10^(-4) ""^(0)C^(-1), Iftempertature of system reduced by 20^(@) C then Find the displacement of the joint |
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