Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 190
i inch diameter cast iron rod with 18.5 A. T. perinch, and the flux will again be 10,000 lines. It is quite evident then that the core has great in-fluence on the strength of the magnet. … Fig. 100. Flux in a Magnet: i. e., a Solenoid with Iron Core. The explanation is that wrought iron has far greaterpermeability than air and so 2.2 A. T. per inch can in-duce in the wrought iron as much flux as 3133 A. T. perinch could induce in air. The permeability of cast iron being less than…
Electricity
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