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 363
ween electrostatic charges of opposite signs. Two metallicplates, connected to a source of potential, will take charges propor-tional to the potential difference between them, and a certain attrac-tion results. If one is allowed to move, the electrostatic capacity ofthe combination increases… … Fig. 37. Electrostatic Voltmeter, Vane TypeCourtesy of General Electric Company are so small that instruments constructed on this principle are notsatisfactory for ordinary voltages of 100 to 230 volts; they are,however, well adapted for the measurement of high voltages ofabove 3000 volts. The…
Electrical engineering
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