Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 825
g on the needle, and the pointer therefore remains any-where. On allowing the main current to pass through the thickcoil, by means of the outer and larger binding screws, the axisof the needle instantly places itself along the axis of the thickcoil, and the pointer stands at naught. If now wires be… … Fig. 509. that there is no resistance in the main circuit between the twopoints of attachment of the fine wires. If these wires be sepa-rated by the field magnets of the dynamo, the pointer at oncemoves to a number indicating the resistance of the field magnets.It will be seen that the resistance…
Electrical engineering
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