Question

The SI unit of magnetic permeability is

• A. ${Am}^{-1}$
• B. ${Am}^{-2}$
• C. ${Hm}^{-2}$
• D. ${Hm}^{-1}$

Answer 1

The correct option is D ${Hm}^{-1}$

The correct option is D.

The magnetic permeability of any material is its property for allowing the magnetic line of force to pass through it. Therefore, the magnetic material can support the development of the magnetic field. This capability is measured by the magnetic permeability. Also, the magnetic line of force is directly proportional to the conductivity of the material. Its SI unit is Henry per meter i.e. $H{m}^{-1}$ or newton per ampere square.