For a permanent magnetic material the residual induction and coercive field shou

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Question
For a permanent magnetic material
Options
A. the residual induction and coercive field should be large
B. the residual induction and coercive field should be small
C. area of hysteresis loop should be small
D. initial relative permeability should be high

Correct Answer

the residual induction and coercive field should be large

Explanation

Materials suitable for permanent magnet have large hysteresis loop.

Hence residual and coercive field are large.

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