Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 61
he loop,$^; hence £ = ^^^s— 10-^ sin a volts. (l) The maximum value of the induced E.M.F. for the loopof s conductors is attained when a = 90°, i.e. when theconductors move perpendicularly across the magnetic flux.This maximum value is Em= TZ^mS ^10- yoltS. (2) The instantaneous E.M.F. is… … Fig. 17. The average E.M.F. during a half revolution is obtainedby dividing the area of one lobe by the base line. Thus -Eflv = X Em sin ada 7Z COS <=^£». (3) 7: 7t ^ TZ Substituting the value of £^, there results the averageE.M.F. induced in the loop of s conductors V Ky =2$^5 —IO-« volts. (4)…
Electric machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-247-127.webp)