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 305
d into twocoils wound with a different number of turns, each of whichis inserted in series with the movable coil and brought out toseparate posts. Thus, if it is desired to measure a currentknown to be between one-tenth and 1 ampere, the right-handbinding posts are used, and if between 1 and 100… … Fig. 2r>4.—Dynamometer Ammeter for Alternating or Direct Currents. Portable Form. ELECTROI) YNA MIC8. 2*7
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
