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 26
sing any surface is calledthe total flux over that area and the number of lines per square centi-meter is called the flux density. 17 8 DIRECT-CURRENT DYNAMOS Field about a Conductor Bearing a Current. When a conductorcarrying a current of electricity is passed through a piece of cardboardwith iron… … DownFig. 3. Field about a Conductor Carrying a Current through the card, the filings assume the alignment shown in Fig. 4.From the similarity of the phenomena, it may be concluded that aconductor carrying an electric current is surrounded by a magneticfield whose strength depends upon that of the…
Electrical engineering
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