1.

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

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


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