Modern electricity and magnetism, theoretically and practically considered (1885)
Avery, Elroy M[cKendree], 1844- [from old catalog] · New York and Chicago, Sheldon and company · leaf 121
s been recharged andthen cuts it out as before.The same operation is re-peated with every batteryin circuit. The operationis automatic. Each bat-tery has a clock attached,which registers the timethat the charging currenthas been passing throughFig- ^97. the cells. The incandes- cence lamps are… … 416. Magrnetic Effects of the Electric Cur-rent.—Any conductor is rendered magnetic by passinga current of electricity through it. A common needlemay be magnetized by winding about it an insulated cop-per wire and discharging a Ley den jar through the wire.We have already seen that a bar of soft…
Electricity · Magnetism
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