Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 276
Fig. 230.—Principle of the Wheat-stone Bridge. Fig. 231.—Principle of the Wheat-stone Bridge. The resistance in the armin B as the resistance A, bears the same relation to that in the rheostat at C does to the un- D. Spools are selected for A and B C varied till the galvanometer needle known…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
