a copper wire and an aluminium wire have lengths in the ratio 3:2,diameters in the ratio 2:3 and force applied in the ratio 4:5. find the ratio increase in the length of the two wires
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A copper wire and an aluminium wires have lengths in the ratio 3:2, diameters in the ratio 2:3 and forces applied in the ratio 4:5. Find the ratio of increase in length of the two wires. (YCu = 1.1 × 10¹¹ N m⁻², YAl = 0.7 × 10¹¹ N m⁻²)
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