Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 323
ch half of the coil cuts the lines of force in an oppositedirection, consequently the induced E. M. F.s are also oppo-site in direction and in series with each other. The current,therefore, flows around the ring. When moved through the next 45°, or from B to C, therate of change of magnetic lines… … Fig. 274.—Phases of Induction in a Closed Loop When Rotated in a Mag-netic Field—Principle of the Dynamo. this angle of inclination, 45°, and have, therefore, been emp-tied out. At the position of coil C, all the lines of forceabove it have been emptied out of the coil. The rale ofchange at this…
Electricity · Magnetism
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