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PHYSICS

JAMB 2011 - Question 14

Physics 2011 JAMB Past Questions - Question 14: A copper wire was subjected to a tensile stress of 7.7 x 10Nm² Calculate the tensile strength of the wire 11Nm²

Choose the correct answers from the options given.

A copper wire was subjected to a tensile stress of 7.7 x 10Nm² Calculate the tensile strength of the wire 11Nm²

A: 7.7 x 10³

B: 2.2 x 10³

C: 2.0 x 10³

D: 7.0 x 10³

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Correct Answer

Explanation

Strain = Stress/E = 7.7 X 10/1.1 X 10^11