The dimensions of the ratio of magnetic flux `(phi)` and permeability. `(mu)` are

Options

A. `[M^0L^1T^0A^1]`
B. `[M^0L^(-3)T^0A^1]`
C. `[M^0L^(1)T^1A^(-1)]`
D. `[M^0L^(0)T^0A^(1)]`

Answer

A

Explanation

As `[phi]=[ML^2T^(-2)A^(-1)]and [mu]=[MLT^(-2)A^(-2)]`
`:.([phi])/([mu])=([ML^2T^(-2)A^(-1)])/([MLT^(-2)A^(-2)])=[M^0L^1T^0A^1]`