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Electricity and magnetism (1897)

Gerard, Eric Mary, 1856-1916 · New York W.J. Johnston · leaf 92

An illustration from Electricity and magnetism, 1897, leaf 92
ausses and (B = 16 kilogausses.Between these limits the mean values of the permeabilityare approximately given by the empirical formula, deducedfrom Hopkinsons curve, ix = 3-5 + 4850. Figure 23 presents a curve determined by Ewing and show-ing the loss in a soft-iron bar subjected to increasing… … According to Steinmetz, the loss of energy in ergs isrepresented by the expression* Steinmetz, Vhtdustrie /lectrique, March 6, 1892. IND UCED MA ONE TIZA TION. 77 where t], the coefficient of hysteresis, may have the following-values : Material. Composition and State. Coefficient ofHysteresis.…

Electricity · Magnetism

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