an aluminium alloy bar with a Young's modulus of 70GPa is under a tensile stress of 10MPa, Which of thefollowing is the equal to the strain in the bar?
A 0.0014
B 7.0x10raise to the power3
c 700
D 1.4x10 raise to the power -4
A 0.0014
B 7.0x10raise to the power3
c 700
D 1.4x10 raise to the power -4