A steel bar 100 mm long is subjected to a tensile stress σ. If change – McqOptions

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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

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