Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 829
Fig, 511. 808 ELECTRICAL MEASUREMENT. … Fig, 512. Thomsons graded current galvanometer. 809 Springs, ij take the weight of the core, ^, and are soadjusted that when no current passes through the coil, /, contactis broken with the insulated ring, h; but a very small currentthrough this coil will make the contact and cause the electromotor…
Electrical engineering
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