Lodge, Oliver, Sir, 1851-1940 · London, New York, Macmillan and co. · leaf 210
isin the middle. If it be a loop, the neutral line is CHAP. X.] MODELS OF MAGNETIC FIELD. 191 nearer the outside than the inside, because the rotationof the medium inside is the strongest. If the loop beshut up to nothing, the neutral line is its outer boundaryor nearly so (Fig. 40). If, again, the… … Fig. 42.—Section of a closed magnetic circuit, or electric vortex-ring, or hollow bentsolenoid like Fig. 20, inclosing an anchor-ring air space; the axis of the ring beingAB, the sections of its core being e and p. The arrows indicate the intensity ofthe spin, i.e. of the magnetic Held, which is a…
Electricity
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