Explain hysteresis loop
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Posted by Vandana Pathak 7 years ago
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Yogita Ingle 7 years ago
The word hysteresis means lagging behind. The phenomenon of lagging of intensity of magnetisation (M) behind magnetic intensity (H), when a specimen of magnetic material is subjected to a cycle of magnetization is called hysteresis.
For ferromagnetic materials, by removing external magnetic field i.e. H = 0, the magnetic moment of some domains remain aligned in the applied direction of previous magnetizing field which results into a residual magnetism. The lack of retracibility as shown in figure is called hysteresis and the curve is known as hysteresis loop.
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