The energy stored per unit volume of a strained wire is
The energy stored per unit volume of a strained wire is
(A) \(\frac{1}{2}\) × (load) × (extension)
(B) \(\frac{1}{2}\times\frac{Y}{(strain)^2}\)
(C) \(\frac{1}{2}\) × Y × (strain)2
(D) Stress × strain
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