A steel wire is acted upon by a load of 10 N. Calculate the extension produced in the wire, if the strain energy stored in the wire is 1.1 × 10-3 J.
Answered Feb 05, 2023
Given: F = 10 N, Strain energy = 1.1 × 10-3 J,
To find: Extension (l)
Formula: W = \(\frac{1}{2}\) × F × l
Calculation:
From formula,
l = \(\frac{2\,W}{F}=\frac{2\times1.1\times10^{-3}}{10}\) = 2.2 × 10-4 m.
The extension produced in the wire is 2.2 × 10-4 m.
Correct answer is (B) yield point
Correct answer is (B) 3 m3
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