Two wires each of radius 0. 2 cm and negligible mass, one made of steel and the other made of brass are loaded as shown in the figure. The elongation of the steel wire is______10 -6 m. [Young's modulus for steel = 2 x 10 11 N m -2 and g = 10 m s -2 ]
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The force acting on steel wire F is (2 + 1.14) g = 3.14g
From the relation of Young's modulus, it can be written
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