Question

What are the dimensions of permeability ?(a) [M¹L¹T¹A⁻²](b) [M¹L¹T⁻²A⁻²](c) [M²L²T¹A⁰](d) [M¹L²T²A⁻²]

Answer 1

Permeability is a concept of electromagnetism and is measure of the ability of a material to support the formation of a magnetic field within itself.  It is the ability of a medium to allow the formation of magnetic field varying from medium to medium and depends upon the frequency of temperature, magnetic field, and other parameters.

Permeability is denoted by ‘μ' .

The unit of intensity of magnetic field is Tesla or Newton per Ampere m = (N/Am)

Unit of magnetizing field is Ampere per m = (A / m).

Thus, permeability has unit Newton per Ampere square

μ = Newton / Ampere square

Or μ = N/ A²

The dimensional formula of permeability is MLT^-2*A^-2