written 7.8 years ago by
teamques10
★ 64k
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• modified 7.8 years ago |
Mumbai university > FE > SEM 1 > Applied Physics 1
Marks: 3M
Year: Dec 2012
|
written 7.8 years ago by
teamques10
★ 64k
|
• modified 7.8 years ago |
| Sr.No. | Soft Magnetic Materials | Hard Magnetic Materials |
|---|---|---|
| 1 | Soft magnetic materials are those materials which have a smaller area enclosed by their Hysteresis loop | Hard magnetic materials are those materials which have a Larger area enclosed by their Hysteresis loop |
| 2 | They have low remnant magnetization | They have high remnant magnetization |
| 3 | They have low coercivity | They have high coercivity |
| 4 | They have high initial permeability | They have low initial permeability |
| 5 | Hysteresis loss is less | Hysteresis loss is higher |
| 6 | Eddy current loss is less | Eddy current loss is more for metallic types and low for ceramic types. |
| 7 | Used in transformer cores, motors, generators, electromagnets, etc. | Used in making permanent magnets, magnetic separators, magnetic detectors, speakers, microphones, etc. |
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