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 304
Fig. 252.—Siemens Dynamometer.Laboratory pattern. Fig. 253.—Connectionsof Siemens Dyna-mometer. due to the current. One end of a spring, S, is rigidly fastenedto the movable coil, and the other end terminates in a mill-headed screw on the face of the dial, which can be turned soas to apply torsion…
Electricity · Magnetism
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