Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 487
of the arrow,then, applying Maxwells rule to any single turn of wire, as ah, since the induction throughthis portion of the circuit isdecreasing, it is evident thatthe induced current will runfrom a to b. across the face ofthe ring. Proceeding in thesame manner with the others, itis seen that the… … Fig. 308. COMPAEI<OX OF EIXG AXB TjEVM AEMATUEES. 477 into a great number of sections connected in series, and to itsown commutator bar. as is shown in Figr 308. 429. Comparison of Ring and Drum Armatures. — In the case of the rinsf armature we may regard the total ma erne ticinduction as…
Physics
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