strain = change in L/L = 25 * 10^-3 / 2
stress = F/A = 10^3/(pi*10^-6) =10^9/pi
E = stress/strain
=[10^9/pi] /[25 * 10^-3 / 2]
A wire length 2m and radius 1mm is stretched by 25mm on application of a force of 1000N.Calculate the young modulus
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