Gerard, Eric Mary, 1856-1916 · New York W.J. Johnston · leaf 334
UCTION. repelled by the solenoidal currents equivalent to the mag-net. The currents induced behind the poles are, on thecontrary, attracted. This experiment enables us to formulate a general rule:Whenever the lines of force of a magnetic field are dis-placed in a conductor, it tends to follow the… … enclosed between two pairs of coils AA, BB, shown insection in the figure. Similar periodic currents are passed through these coils,but differing in phase by 90°. A part of the lines of force thus produced traverses thesubstance of the disc, entering by the edge. Denote by 3Cthe mean intensity of…
Electricity · Magnetism
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