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1. |
A steel bar 100 mm long is subjected to a tensile stress σ. If change in length of bar is 0.05 mm what is the value of σ? Given E = 200 GPa |
A. | 200 MPa |
B. | 100 MPa |
C. | 80 MPa |
D. | 150 MPa |
Answer» C. 80 MPa | |