1.

If a bar of two sections of different diameters of same length are in a line and P load is acting axially on them then what will be the change in length of the bar?

A. PL/E x (1/A<sub>1</sub> + 1/A<sub>2</sub>)
B. P/E x (1/A<sub>1</sub> + 1/A<sub>2</sub>)
C. P/EL x (1/A<sub>1</sub> + 1/A<sub>2</sub>)
D. PE/L x (1/A<sub>1</sub> + 1/A<sub>2</sub>)
Answer» B. P/E x (1/A<sub>1</sub> + 1/A<sub>2</sub>)


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