Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 59
tting lines of force and atno time could the pressure be zero. To satisfactorily collect current from this arrange-ment requires four commu-tator segments and a systemof connections similar to thatshown in Fig. 16. In thiscase the E.M.F. would fluc-tuate, but not so badly as inthe previous one. If… … 48 DYNAMO ELECTRIC MACHINERY. 33. Electromotive Force Generated. — The magnitude ofthe electromotive force induced in a conductor of length/ cm. moving parallel to itself with a velocity of v cm. persec. across a uniform magnetic field having a flux density of(B gausses is E = (Silv io~^ sin a…
Electric machinery
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