Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 53
ELECTRIC CURRENT 33 source, storing up a current supply which is afterwards yielded in thereverse direction to that of the charging current. An electric current is generated mechanically by a dynamo.In either case no electricity is produced, but part of the supplyalready existing is simply set in…
Electrical engineering
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