Question #8de52

1 Answer
Mar 26, 2017

Answer:

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.