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electronics and communication engineering materials and components
1. For a permanent magnetic material
(A): area of hysteresis loop should be small
(B): initial relative permeability should be high
(C): the residual induction and coercive field should be large
(D): the residual induction and coercive field should be small
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By: guest on 02 Jun 2017 12.59 am
Materials suitable for permanent magnet have large hysteresis loop. Hence residual and coercive field are large.
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