A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 1017
d to aframework which can berotated through any de-sired angle, the positionfor sparkless running beingfound by trial. Drum armature.—In the ring armature, the conductors lying outside the iron core cul the magnetic field as the armature rotates, bhose lying on the inside of the ring do not cut any… … i ra 93 Direct current dynamo. Lxxvn DRUM ARMATURE 993 rotating coil (Fig. 926) does not have any idle conductors exceptat the ends, but the electromotive force in it is not sufficiently steadyfor industrial purposes. If, however, a number of such coils inseries arranged at various angles to each…
Physics
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