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

(1) `B = (mu_(0)i)/(2r)`
Unit of `mu_(0) : (N)/(amp.m) (m)/(amp) = (N)/(amp^(2))`
`[mu_(0)] = (MLT^(-2))/(A^(2)) = MLT^(-2) A^(-2)`