Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 473
gh thewire. It is readily seen that the heating effect in a wire will increaseand decrease as the current increases and decreases, hecause at eachiistanf the heating effect will he proportional to the square of the current atthat instant. Of course, the current varies so rapidly that to all… … ALTERNA TING < f BRENTS. 465 low enough, the variation in heating effect may be noticed, underfavorable conditions. It* we take an incandescent lamp, the filament of which is very fine and quite sensitive to changes in the heating effect, and operateit from an alternator furnishing current at…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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