St. John, Thomas M. (Thomas Matthew), b. 1865 · New York, T. M. St. John · leaf 107
I04 EI.ECTRICITY GENERATED BY DYNAMOS. … Fig. 145- field, and some means of leading the current from the machine. If a loop of wire, Fig. 14.0, be so arranged on bearingsat its ends that it can be madeto revolve, a current will flowthrough it in one diredlionduring one-half of the revolu-tion, and in the opposite direc-tion during the…
Electricity
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