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 356
h-out this half revolution, and thecurrent flows around the loopfrom a to c, to d, to b, to a,changing in strength with everyvariation of the generated E. M. F.During the next half revolution thesame variations in E. M. F. occurbut the induced E. M. F. is in theopposite direction. The current is… … Fig. 306.~Direction and Magni tude of the Induced E. M. F. in a Dynamo, 338 PRACTICAL ELECTRICITY, 320. Alternating Current Dynamo.—To utilize the cur-rent flowing in the above closed loop when it is rotated in themagnetic field, some mechanical device must be used to leador collect the current…
Electricity · Magnetism
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