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Figure shows the graph of elastic potential energy U stored versus extension, for a steel wire Y= 2× 1011 Pa of volume 200 cc. If area of cross section A and original

Figure shows the graph of elastic potential energy U stored versus extension, for a steel wire Y= 2× 1011 Pa of volume 200 cc. If area of cross section A and original

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Figure shows the graph of elastic potential energy U stored versus extension, for a steel wire Y= 2× 1011 Pa of volume 200 cc. If area of cross section A and original length L, then
Figure shows the graph of elastic potential energy U stored versus extension- for a steel wire Y- 2- 1011 Pa of volume 200 cc- If area of cross-section A and original length L- then
We can assume, elastic potential energy (U) equal to 12 kx^2 as curve is a parabola symmetric about Y-axis and open upward. So, U=12kx^2 (1)

ON21 P12 Q22 Area under Stress-Strain Graph

8. Two wires of equal length and cross-sectional area are suspended as shown in figure. Their Young's modulers are Y, = 2 x 1011 Pa and Y, = 0.90 * 1011