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 46
thenremoved, it is found possible to draw a spark from it, which in dry weather may be a quarter of aninch or more in length. The proc-ess may be repeated an indefi-nite number of times withoutproducing any diminution in thesize of the spark which may bedrawn from A. If the sign of the charge on…
Electrical engineering
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