Gilley, Frank M · Boston, Allyn & Bacon · leaf 513
way will. N s Ftg. 466. the armature revolve ? As thearmature revolves, the brushBi is no longer in contact withA, but is in contact with D, asin Fig. 467. Current enters thewinding at D, and there divid-ing, one-half goes through thewire on each side, and unitesand passes out at brush £2-What… … Fig. 467. Apparatus: Battery, or hand dynamo; compass; iron filings; Gramme ringmachine, I., Fig. 468, having an armature revolving on a vertical axis; thefield magnet rests on a support, and is removable; the commutator is onthe under side of the armature; the armature rests on a pointed…
Physics
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