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.Management Sciences
A. rapid reversals of its magnetisation
B. flux density lagging behind magnetising force
C. molecular friction
D. it high retentivity
Related Mcqs:
- The relative permeability of a ferromagnetic material is_____________?
- A. less than one B. more than one C. more than 10 D. more than 100 or 1000...
- A ferrite core has less eddy current loss than an iron core because_______________?
- A. ferrites have high resistance B. ferrites are magnetic C. ferrites have low permeability D. ferrites have high hysteresis...
- Silicon steel is used in electrical machines because it has_____________?
- A. low coercivity B. low retentivity C. low hysteresis loss D. high coercivity...
- If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be____________?
- A. zero B. small C. large D. none of the above...
- A material for good magnetic memory should have____________?
- A. low hysteresis loss B. high permeability C. low retentivity D. high retentivity...
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