The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)
A. $$\frac{{{\text{P}}l{\text{A}}}}{{\text{E}}}$$
B. $$\frac{{{\text{P}}l}}{{{\text{AE}}}}$$
C. $$\frac{{\text{E}}}{{{\text{P}}l{\text{A}}}}$$
D. $$\frac{{{\text{AE}}}}{{{\text{P}}l}}$$
Answer: Option B
This Question Belongs to Mechanical Engineering >> Strength Of Materials In ME
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