1.

Let \[[{{\varepsilon }_{0}}]\] denotes the dimensional formula of the permittivity of the vacuum and \[[{{\mu }_{0}}]\] that of the permeability of the vacuum. If \[M=\text{mass}\], \[L=\text{length}\], \[T=\text{Time}\] and \[I=\text{electric current}\], then                                 [IIT 1998]

A.             \[[{{\varepsilon }_{0}}]={{M}^{-1}}{{L}^{-3}}{{T}^{2}}I\]           
B.             \[[{{\varepsilon }_{0}}]={{M}^{-1}}{{L}^{-3}}{{T}^{4}}{{I}^{2}}\]
C.             \[[{{\mu }_{0}}]=ML{{T}^{-2}}{{I}^{-2}}\]   
D.             \[[{{\mu }_{0}}]=M{{L}^{2}}{{T}^{-1}}I\]
Answer» C.             \[[{{\mu }_{0}}]=ML{{T}^{-2}}{{I}^{-2}}\]   


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