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