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The area of cross section of a steel wir...

The area of cross section of a steel wire is 0.1cm2. What is the force required to double it's length if ` Y = 2 xx 10^11 N /M^2`?

Text Solution

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strain `l/L` = `therefor` F = AT
= `0.1 xx 10^(-4) xx 2 xx 10^11 = 2 xx 10^6 N`
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