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 186
er the influence ofa magnetic field, such as thatof a wire through which a cur-rent is flowing. A simple gal-vanometer consists essentiallyof a magnetic needle poisedor suspended in the centre of acoil of wire, and provided witha circular scale, graduated indegrees, on which the devia-tion, or… … Battery Fig. 152.—Simple Galvanometer. 168 PRACTICAL ELECTRICITY.
Electricity · Magnetism
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