St. John, Thomas M. (Thomas Matthew), b. 1865 · New York, T. M. St. John · leaf 106
past strong eledlro- magnets. In this way thecoil can keep on passingthe same magnets, in thesame direction, as long asforce is applied to the shaftthat carries them. 129. Field-Magnets;Armature; Commuta-tor. What we need then,to produce an inducedcurrent by a rotarj motion,is a strong magnetic… … I04 EI.ECTRICITY GENERATED BY DYNAMOS.
Electricity
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