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Electronics and Communication Engineering - Materials and Components - Discussion

Discussion Forum : Materials and Components - Section 1 (Q.No. 22)
Materials and Components
22.
For a permanent magnetic material
the residual induction and coercive field should be large
the residual induction and coercive field should be small
area of hysteresis loop should be small
initial relative permeability should be high
Answer: Option
Explanation:

Materials suitable for permanent magnet have large hysteresis loop.

Hence residual and coercive field are large.

Discussion:
1 comments Page 1 of 1.
Ayesha said:   9 years ago
Can you please explain what is meant by hysteresis loop, residual and coercive field?
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