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 364
DYNAMO ELECTRIC MACHINES. 345 … Fig. 319.—Single Coil ArmatureWith Many Turns. Exp. 93: (a) Repeat Exp. 78, page 297, to determine the directionthe galvanometer needle deflects tor a given direction of current, (b) Test with a compass and mark the polarity of the pole pieces. (c) I determine, with the aid of the galvanometer, the…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
