Advertisements
Advertisements
Question
From molecular view point, discuss the temperature dependence of susceptibility for diamagnetism, paramagnetism and ferromagnetism.
Solution
Diamagnetism is due to the orbital motion of electrons in an atom developing magnetic moments opposite to the applied field. Thus, the resultant magnetic moment of the diamagnetic material is zero, and hence the susceptibility x of diamagnetic material is not much affected by temperature.
Paramagnetism and ferromagnetism is due to alignments of atomic magnetic moments in the direction of the applied field. As temperature is raised, the alignment is disturbed, resulting decrease in susceptibility of both with increase in temperature.
APPEARS IN
RELATED QUESTIONS
Which of the following substances are para-magnetic?
Bi, Al, Cu, Ca, Pb, Ni
The magnetic susceptibility of platinum is 0.0001. It's relative permeability is:
For a paramagnetic substance, the magnetic susceptibility is ______.
The susceptibility of a magnetic material is positive and small. The material is ______.
The earth’s field departs from its dipole shape substantially at large distances (greater than about 30,000 km). What agencies may be responsible for this distortion?
When a ferromagnetic material is created above its curie temperature
Earth's magnetic field analyses has a horizontal component except at:-
Most of the substance show which of the magnetic property:-
Explain the origin of paramagnetism on the basis of atomic structure.
State the dimensions of magnetization.
