Publisher's Synopsis
Excerpt from Magneto-and Dynamo-Electric Machines, Vol. 1: With a Description of Electric Accumulators From the German of Glaser De Cew
So long as only galvanic batteries were employed in practice for generating electric currents, that is, so long as these currents were obtained solely by chemical action it was but natural that, for doing large quantities of work, the application of electrical energy should be very limited For the cost of maintaining a battery is too high as compared with its efficiency, and it is almost impossible to obtain in this way constant currents of great quantity and intensity. A larger field for the application of electrical energy was opened up when use began to be made of electric currents, produced by the conversion of mechanical energy, through the invention of electric machines.
Faraday's researches on the phenomena of induction, formed the theoretical basis for the construction of electric machines.
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