The dimensions of `1/2 in_(0) E^(2)` (`in_(0)`: permittivity of free space, E: electric field) is-

Options

A. `ML^(2)T^(-2)`
B. `ML^(-1)T^(-2)`
C. `ML^(2)T^(-1)`
D. `MLT^(-1)`

Answer

B

Explanation

`[(1)/(2)in_(0)E^(2)]=["Energy Density "]`
`=(ML^(2)T^(-2))/(L^(3))=Ml^(-1)T^(-2)`