Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity (1854)
Davis, Daniel · Boston : Palmer and Hall · leaf 126
zinc. Hence the zinc plate is in the condition ofa conductor conveying a stream of electricity down-wards, and will consequently revolve under the infl i-ence of the pole which it surrounds. The coppercylinder, on the contrary, is in the situation of aconductor conveying a current upwards, and… … 110 D AVI S S MANUA L, Fig. 61. opposite to these, and of course also contrary toeach other. 175. Vibrating Wire. — A copper wire, seen atW, in Fig. 61, is suspended over a small basin for con-taining mercury ex-cavated in the stand,by means of a brassarm supporting a mer-cury cap, in whichthe…
