Elementary treatise on electricity and magnetism (1903)
Foster, George Carey, 1835-1919, Joubert, Jules François, 1834-1910. Traité élémentaire d'électricité, Porter, Alfred William, 1863- joint author · London, New York, Longmans, Green, and co. · leaf 357
r all the lines of field,both inside and outside, start from the positive or north end, andterminate. at the negative or south end. In the electromagneticcylinder the lines of field in the interior are a continuation of theexternal lines of field, and form closed curves. The magneticinduction is,… … CHAPTER XXIVENERGY OF A CURRENT267. Energy of a Current in a Field.—A wire carrying a current cannot in general be displaced in a magnetic fieldwithout the performance of positive or negative work. We regardthe system, therefore, as having a store of energy the variation ofwhich represents the work…
Electricity · Magnetism
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