For which of the following column end conditions, the given expression of Euler's crippling load (P) is applicable?
(where L = actual length of column, E = modulus of elasticity of material & I = moment of inertia of column crosssection)
P = \(\frac{{2EI{\pi ^2}}}{{{L^2}}}\)
1
Both ends of the column are hinged.
2
One end is fixed and another end is hinged.
3
Both ends of the column are fixed.
4
One end is fixed and another end is free.