List of top Material Science and Technology Questions on Magnetism

Arrange the following elements with different atomic weight and same density according to decreasing number of atoms per unit volume:
A. Atomic weight \(=10\),
B. Atomic weight \(=20\),
C. Atomic weight \(=30\),
D. Atomic weight \(=40\).

Arrange the following in decreasing order:
A. Net magnetization in ferromagnets,
B. Net magnetization in ferrimagnets,
C. Net magnetization in anti-ferromagnets,
D. Net magnetization in paramagnets.

Arrange the following types of materials in decreasing order of Fermi energy level from valence band:
A. \(p\)-type semiconductor,
B. \(n\)-type semiconductor,
C. Intrinsic semiconductor,
D. \(n\)-type degenerate semiconductor.

Arrange the following options in decreasing order:
A. The activation energy for lattice diffusion is \(Q_l\),
B. The activation energy for dislocation core is \(Q_d\),
C. The activation energy for grain boundaries is \(Q_g\),
D. The activation energy for surface is \(Q_s\).

If the temperature of an ideal gas is raised from \(T_1\) to \(T_2\) through the following processes, arrange the heat supplied in increasing order:
A. Adiabatic,
B. Isochoric,
C. Isobari
C.

Among the following, which is not a technique used to study the morphology of materials?

The energies involved in the process of domain growth are:
A. Exchange energy
B. Anisotropic energy
C. Domain Wall energy
D. Magnetostrictive energy
Choose the correct answer from the options given below:

Paramagnetic materials behaves as diamagnetic materials :

What is the effect of temperature on magnetic susceptibility of ferromagnetic materials?

Domain theory explains:

Antiferromagnetic materials have magnetic susceptibility in the range:

Which of the following is true for hard magnetic materials: