Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 546
directions nocurrent flows around the armature, although the points ofgreatest P^Dx are joined together by the parts of the arma-ture wire not under the poles. Since what becomes of the lines of force after passingthe points a and ^ of a ring armature, or what the armaturewires not between a and b…
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