Elementary treatise on electricity and magnetism : (1905)
Foster, G. C. (George Carey), 1835-1919, Joubert, J. (Jules François), 1834-1910, Porter, Alfred W. (Alfred William), 1863-1939 · London ; New York ; Bombay : Longmans, Green, and Co. · leaf 476
Fig. 31.5. Fig. 316. 375] RESISTANCE BOXES 453 A thermometer in the box containing the wire indicates the tem-perature. 375. Resistance Boxes.—It is necessary to have at our dis-posal a series of resistances, the values of which inciease regularly.They consist ordinarily of coils placedin a box,…
Electricity · Magnetism
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