Dimensions of permeability are

Options

A. `A^(-2) M^(1) L^(1)T^(-2)`
B. `MLT^(-2)`
C. `ML^(0) T^(-1)`
D. `A^(-1) MLT^2`

Answer

A

Explanation

`F = (mu_0)/(4pi) .(2I_1I_2I)/(r)`
`mu_0 = [MLT^(-2)]//[A]^2 =[MLT^(-2)A^(-2)]`
or `B=(mu_0NI)/limplies mu=([MLT^(-2)A^(-1)L^(-1)][L])/([A])=[MLT^(-2)A^(-2)]`