Elementary treatise on electricity and magnetism : (1905)
Foster, G. C. (George Carey), 1835-1919, Joubert, J. (Jules François), 1834-1910, Porter, Alfred W. (Alfred William), 1863-1939 · London ; New York ; Bombay : Longmans, Green, and Co. · leaf 370
FiC4. 237. Fia. 238. more powerful than steel magnets, but the property they possess,more especially if the iron is quite soft and the bars short, of beingessentially temporary, of only existing during the passage of thecurrent, of being created and destroyed, so to speak, with it,renders them…
Electricity · Magnetism
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