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A load of 4 kg is suspended from a ceili...

A load of `4 kg` is suspended from a ceiling through a steel wire of length `20 m` and radius `2 mm`. It is found that the length of the wire increases by `0.031 mm`, as equilibrium is achieved. If `g = 3.1xxpi ms(-2)`, the value of young's modulus of the material of the wire (in `Nm^(-2))` is

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