The magnetic permeability ' ' a of a paramagnetic substance is :

Step-by-step solution

The magnetic permeability of a material is related to its relative permeability _ r by the relation = ₀ _ r . For a paramagnetic substance, the magnetic susceptibility is small and positive. The relative permeability is given by _ r = 1 + . Since > 0 for paramagnetic materials, it follows that _ r > 1 . Consequently, the absolute magnetic permeability = ₀ _ r is greater than the permeability of free space ₀ . In the context of relative permeability or dimensionless permeability often used in such questions, > 1 . A