Electricity and magnetism for advanced students (1920)
Starling, Sydney George, 1873- · London Longmans, Green · leaf 289
ng and descendingbranches lie closer together. The saturation value of B for cobalt isvery little short of that for iron and steel. The coercive force fornickel is about 7*5 and for cobalt 12. The effect of mechanical disturbance such as tapping is to make theascending and descending branches for… … ^ Work due to Hysteresis.—The act of taking a body through a cycleof magnetisation involves the expenditure of energy ; for the energyrequired to magnetise a specimen is not recoverable on removing themagnetic field, since the magnetisation does not fall to nothing; aJiegative field has to be…
Electricity · Magnetism
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