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 24
oles. He alsofound if another similar magnet was placed on one of the two alreadyin use, thus doubling its strength, that the force exerted was alsodoubled. The force may be expressed by the equation where F = the force exerted on each pole by the other; m^ = thestrength of one pole; vi^ =-■ the… … W». 13* ^ss^ ,^„„,^,.,, „ . .,.,„..„.;.;;::.;iv:v^^^ Fig. 1. Field of Force about a BarMagnet
Electrical engineering
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