Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 320
K Doiai Fig. 270.—Inverse Induced Current on Make of Circuit, DirectCurrent on Break. current, right-hand diagram, Fig. 270. If the primaryswitch be automatically closed and opened a great manytimes per second, the momentary induced currents will be-come constant in duration, but will change their…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
