Modern electricity and magnetism, theoretically and practically considered (1885)
Avery, Elroy M[cKendree], 1844- [from old catalog] · New York and Chicago, Sheldon and company · leaf 164
ate, long coil galvanometer, G, INDUCED ELECTRICITY, 333 Remember that there is no electrical connection betweenthe two coils. Wires from the poles of a voltaic cell, P,dip into mercury in the cups g g, thus closing a circuitthrough the primary coil of B. While this circuit is closed,the… … Fig. 236. is deflected, as by a sudden impulse that immediatelypasses away. This movement of the galvanometer needleshows the existence of a momentary, induced current inthe secondary coil. The direction in which the needleturns, shows that the secondary current is direct, i, 6.,that it has the…
Electricity · Magnetism
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