Explores many methods of producing electrical currents, from the historic discoveries of Michael Faraday to today's massive generators, from chemical conversion in wet- and dry-cell batteries to heat and light conversions. Discusses the adaptation of the various methods to central and portable sources of power and to detection and measurement.
Also issued in black and white.
Educational authors, Virgil H. Heniser, Lawrence E. Poorman, David S. Sarner, J. Hervey Shutts.
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produced by Indiana University Audio Visual Center.