Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 257
ations the operation of the electric motoras applied to pumps will be easily understood; its appli-cation to other Hiachines is the same in theory and practice. Why an electric motor revolves is a question well worthcareful, and, if necessary, long study. The reason why there is a tendency for an… … Fig. «3. the nature of an electric current. For practical purposes itmatters little what the reason is . tJie fact that current flowsivhen there is an electric pressure in a closed circuit, is the im-portant thing, and it serves all useful purposes to know thatcurrent does flow, and that its…
Hydraulic machinery · Pumping machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
