Euler's Crippling load for a column of length L with both ends fixed is given by : (Assume uniform flexural rigidity EI for the column Section)
1
\({{\pi^2}\ EI}\over L^2\)
2
\({{4\pi^2}\ EI}\over L^2\)
3
\({{\pi^2}\ EI}\over 4L^2\)
4
\({{2\pi^2}\ EI}\over L^2\)