Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 338
Fig. 3. Wolff Standard Resistance Coil Courtesy of James G. Biddle, Philadelphia, Pennsylvania 301 6 ELECTRICAL MEASUREMENTS age of a standard cell l)y means of a potentiometer, as explainedlater. … Fig. 4. Wolff Standard Low Resistance for Carrying Heavy CurrentsCourtesy of James G. Biddle, Philadelphia, Pennsylvania OHMS LAW In 1827, Dr. G. S. Ohm, of Berlin, published a treatise, nowfamous, entitled The Galvanic Circuit Investigated Mathematic-ally, in which he announced the fundamental law…
Electrical engineering
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