Magnetic Materials Physics - Magnetic Materials

What is magnetization? Write its unit and dimensions.

What happens to a ferromagnetic substance heated above Curie temperature?

What happens if the rod of diamagnetic material is placed in a non-uniform magnetic field?

Give any 'two' points of differences between diamagnetic and ferromagnetic substances.

An iron rod of area of cross-section \(0.1 m ^2\) is subjected to a magnetising field of \(1000 A / m\). Calculate the magnetic permeability of the iron road. [Magnetic susceptibility of iron \(=59.9\); Magnetic permeability of vacuum \(=4 \pi \times 10^{-7} S\). I. Unit.]

The magnetic moment of a magnet of dimensions \(5 cm \times 2.5 cm \times 1.25 cm\) is \(3 Am ^2\). Calculate the intensity of magnetization.

What is: (a) Magnetization and (b) Magnetic intensity?

The magnetic susceptibility of annealed iron at saturation is 4224. Find the permeability of annealed iron at saturation. \(\left(\mu_0=4 \pi \times 10^{-7}\right.\) S.I. unit)

Obtain the expression for Bohr magneton.

What is magnetization, magnetic intensity and magnetic susceptibility?

Derive an expression for orbital magnetic moment of an electron revolving around the nucleus in an atom. State the formula for the Bohr magneton.

(a) Define and state unit and dimensions of Magnetization
(b) Explain magnetic susceptibility