Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 153
)oth cases, or in other words, the direc-tion of the voltage is the same under both conditions. From … Fig. 137.—Same as Fig. 135, except that both the direction of the con-ductor and lines of force are reversed. this the deduction may be made that in order to reverse thedirection of the electromotive force generated in a conductor,it is necessary to change the direction of motion of either…
Electric machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Famous airmen and their equipment [electronic resource] : with some notes on first-aid in emergencies (1912)](https://img.insideoutlibrary.com/img/200/ia-b20457716-75-71.webp)