The dimension of \(\frac{1}{2} \epsilon E^2\) where ε0 is permittivity of free space and E is electric field, is :

[MLT-1] [ML2T-2] [ML-1T-2] [ML2T-1]

[ML-1T-2]

Energy Density = \(\frac{ML^2T^{-2}}{L^3}\)                        = [ML-1T-2]