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 337
, one form being shown in Fig. 4.These are made for resistance valuesof .001 ohm and less, with currentcapacity of 300 to 1500 amperes. Standards of potential and resist-ance are all that are ordinarily re-quired, as current values can be ob-tained from these by Ohms law.Accordingly, low resistance… … 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.
Electrical engineering
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