Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 302
force are parallelto the axis of the cylinder. These lines, moreover, are verycrowded, since all the lines pass through the cylinder, but chap, v.] Electro- Magnetism and Dynamics. 283 are spread through the whole field outside it. The crowdingtogether of the lines explains on Faradays hypothesis… … Fig. 181. This explains why a soft iron wire placed outside will bemagnetized very feebly and in the opposite direction to themagnetization of the solenoid, while a wire inside will be verystrongly magnetized in the same direction. 189. Electro-Magnets.—Temporary magnets of greatpower are made by…
Electricity
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