Question #8de52

1 Answer
Aritra G.
Mar 26, 2017

Magnetic permeability is a property of a material on how it responds to magnetic fields.

The higher the permeability, the better is it's response.

Explanation:

Consider two linear materials 1 and 2 with permeabilities mu_1 and mu_2 respectively.

For a magnetic intensity vec H provided externally, the corresponding magnetic inductions in the mediums are respectively, vec B_1 = mu_1 vec H and vec B_2 = mu_2 vec H.

Thus, one can see that higher the permeability, the greater is the magnetic induction for a given external magnetising field vec H.

The ratio of the permeability of a medium to that of vacuum is called the relative permeability of the medium.

Relative permeability, mu_r = mu/mu_0 where mu is permeability of the medium and mu_0 is permeability of vacuum.

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