engineering recuitment JSSC JE Mock Test 2023 Strength of Materials Simple Stress and Strain Deflection of Bar
The extension of a bar of diameter d, length L and specific weight w under action of self-weight is given by
1
\({{w{L^2}} \over {2E}}\)
2
\({{2w{L^2}} \over {E}}\)
3
\({{w{L^3}} \over {2E}}\)
4
\({{w{L^4}} \over {2E}}\)