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ECE · Q178

Materials And Components

Engineering and GATE · ECE · question 178

Q178

Ferromagnetic materials show hysteresis in B-H characteristics. As the magnetic field is increases slowly from zero value, what is the first process which sets in the material to give net magnetization?

A.
Growth of favorably oriented domains at the cost of other domains by reversible boundary displacements
Answer
B.
Growth of favorably oriented domains at the cost of other domains by irreversible boundary displacements
C.
Domain wall orientation
D.
A combination of processes A and C above

Answer: Option A

Solution

Answer: Option A
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