An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 230
lposition), we may get the current to flow out only at onebrush B + , and in only at the other brush B —. The direc-tion of the current in the external circuit is always the same,even though the current in the loop itself reverses twice inevery revolution. The voltage delivered by such a machine… … Fig. 132. Split-ring commutation. 202 ELECTRICITY AND MAGNETISM +30«+20£ + 102 0 2- -30 ^ ■vj <^\ / \ / \ / / 1. \£ 1 FO ::7 N OF LC c? IN DEGREES Fig. 133. — Pulsating e.m.f. delivered by loop fittedwith commutator. between the pole pieces as in figure 132, it is in such a positionthat when it…
Electricity · Magnetism
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