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  4. What percent of length of a wire will increase by applying a stress of 1 kg. wt/mm2 on it (Y=1×1011Nm-2 and 1 kg wt = 9.8N]

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Q. What percent of length of a wire will increase by applying a stress of 1 kg. $wt/mm^2$ on it $(Y=1\times10^{11}Nm^{-2}$ and 1 kg wt = 9.8N]

Mechanical Properties of Solids

Solution:

$\frac{e}{l} \times 100 = \frac{F}{AY} \times 100$