Which of the following is not correct about relative magnetic permeability (μ r )?

Question

Which of the following is not correct about relative magnetic permeability (μ r )? (A) It is a dimensionless pure ratio (B) For vacuum medium its value is one (C) For ferromagnetic materials μ r > > 1 (D) For paramagnetic materials μ r > 1

Tardigrade Admin · Accepted Answer

Relative magnetic permeability μ r =( text magnetic permeability of material (μ)/ text permeability of free operatornamespace(μ0)) It is a dimensionless pure ratio and for ferromagnetic materials μ r > 1. For paramagnetic materials μ r <1

Q. Which of the following is not correct about relative magnetic permeability $(μ_{r})$ ?

It is a dimensionless pure ratio

For vacuum medium its value is one

For ferromagnetic materials $μ_{r} >> 1$

For paramagnetic materials $μ_{r} > 1$

Relative magnetic permeability
$μ_{r} = \frac{magnetic permeability of material ( μ )}{permeability of free space ( μ _{0} )}$
It is a dimensionless pure ratio and for ferromagnetic materials
$μ_{r} > 1$ .
For paramagnetic materials $μ_{r} < 1$

Q. Which of the following is not correct about relative magnetic permeability (μr​)?

It is a dimensionless pure ratio

For vacuum medium its value is one

For ferromagnetic materials μr​>>1

For paramagnetic materials μr​>1

Relative magnetic permeability μr​= permeability of free space(μ0​) magnetic permeability of material (μ)​ It is a dimensionless pure ratio and for ferromagnetic materials μr​>1. For paramagnetic materials μr​<1

Q. Which of the following is not correct about relative magnetic permeability $(μ_{r})$ ?

For ferromagnetic materials $μ_{r} >> 1$

For paramagnetic materials $μ_{r} > 1$

Relative magnetic permeability
$μ_{r} = \frac{magnetic permeability of material ( μ )}{permeability of free space ( μ _{0} )}$
It is a dimensionless pure ratio and for ferromagnetic materials
$μ_{r} > 1$ .
For paramagnetic materials $μ_{r} < 1$