Question

If µ0 is the permeability of free space and χm is the magnetic susceptibility of a medium, the relative permeability of the medium is (a)1+χm (b)µ0 /1+χm (c)µ0 /χm (d)µ0(1+χm )​

Answer 1

Answer:

a)1+Xm

Explanation:

We know, magnetic field due to induction, B=Bext +Bsubstance

or, B=uo(H+I)

or,B/H = uo{1+(I/H)}

or,u=uo{1+(I/H)}

or,u/uo=ur=1+Xm

Here, I=magnetization of a substance, H=applied magnetic intensity, Magnetic susceptibility Xm=l/H

Answer 2

The relative permeability of the medium will be 1+χm.

• Relative permeability can be defined as the ratio of the permeability of a particular medium with respect to another.
• It is a dimensionless quantity, since it is a ratio of two similar quantities.
• It can either be described in terms of the permeability of other substances or in terms of the magnetic susceptibility of the medium.