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 341
t causes the transfer of mercury through a solution of mer-curous nitrate onto a platinum cathode. As the deposited mercury + Fig. 7. Diagram of Edison Chemical Meter 304 ELECTRICAL MEASUREMENTS 9 will not amalgamate with (i. e., dissolve) the platinum, it dropsoff into a tube so graduated as to… … Fig. 8. Wright Electrolytic Meter the square of the current and to the resistance of the wire. Thus,the heating effect of a current is expressed by the equation Heating effect = r/i The expansion of a wire, when heated by an electric current, isutilized in some instruments to indicate the amount of…
Electrical engineering
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