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Calculate the percentage increase in len...

Calculate the percentage increase in length of a wire of diameter `2.2` mm stretched by a load of 100 kg. Young's modulus of wire is `12.5xx10^(10)" N m"^(-2)`.

Text Solution

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`F=100xx9.8N`
`(DeltaL)/(L)=(F)/(AE)`
`(DeltaL)/(L)=0.0021`
`:.%` increase in length `=(DeltaL)/(L)xx100=0.21%`
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