Four wire of the same material but having different lengths subjected to same load. Which of the following combinations of length L and radius r will have the highest elongation ? (a) and radii are L = 200 cm, r= 2 mm %3D (b) L = 3300 cm, r = 3 mm %3D (c) L = 400 cm, r= 4 mm (d) L = 100 cm, r=1 mm
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