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 364
DYNAMO ELECTRIC MACHINES. 345 … 319.—Single Coil ArmatureWith ]\Jany Turns. Exp. 93 : (a) Eepeat Exp. 78, page 207, to determine the directionthe galvanometer needle deflects for a given direction of current. (b) Test with a compass and mark the polarity of the pole pieces. (c) Determine, with the aidof the galvanometer, the…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
