Advanced theory of electricity and magnetism; A text-book for colleges and technical schools (1915)
Franklin, William S. (William Suddards), 1863-1930, MacNutt, Barry, 1878-1936. joint author · New York, Macmillan · leaf 109
the first time, andthe branch pp represents the values of $ and e^ when, afterthe iron has been magnetized up to the point p, the valueof df is slowly reduced to zero. The curve of SB and Stf fordecreasing values of 3i does not coincide with the curve for increasingvalues of 3i. Now, as explained… … the iron when the magnetizing field drops slowly to zero. Thework regained is less than the work required to magnetize the iron. The work which is lost is repre-sented by the shaded area in Fig.67. That area in Fig. 67 representswork may be shown as follows: Ab-scissas represent values of 3t…
Electricity · Magnetism
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