Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples (1911)
Moreton, David Penn, 1882- · Chicago, The Reilly & Britton co · leaf 167
tray magnetic flelds, and, in the majority of cases,a reversal of current through the coils, although the currentremains constant in value, will result in a different indication.When the instruments are used in an alternating-current cir-cuit, these errors are very much reduced—provided the… … Fig. 116 ELECTKICAL INSTRUMENTS 157 in section (163), is called an indicating wattmeter, sinceit gives the instantaneous value of the watts expended in acircuit, just as a voltmeter and ammeter indicate the fluctua-tion in voltage and current. The watt-hour consumption inany circuit could be…
Electrical engineering
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