Write short notes on : (c) Ferromagnetist (a) Diamagnetism (b) Paramagnetism
Answers
a)Diamagnetic materials are repelled by a magnetic field; an applied magnetic field creates an induced magnetic field in them in the opposite direction, causing a repulsive force. In contrast, paramagnetic and ferromagnetic materials are attracted by a magnetic field.
b)Paramagnetism is a form of magnetism whereby some materials are weakly attracted by an externally applied magnetic field, and form internal, induced magnetic fields in the direction of the applied magnetic field. ... Paramagnetic materials include aluminium, oxygen, titanium, and iron oxide
c)Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished. ... The common ones are iron, cobalt, nickel and most of their alloys, and some compounds of rare earth metals.
Answer:
Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. ... The common ones are iron, cobalt, nickel and most of their alloys, and some compounds of rare earth metals.