Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 180
confirm, theposition the needles take up at any point. On one side of theloop all the whirls enter it in the same direction, and emergefrom the opposite side as is further shown in Fig. 140. 172. Magnetic Field at the Centre of a Circular Cur-rent.—If a magnetic body, A, Fig. 140, be held above… … Fig. 140.—Attraction of Magnetic Body (A) by theMagnetic Field of the Circular Current. j;hrough itself the greatest number of lines of force of the cur-rents field, %\ 43. There will be the same tendency in B, Fig.141, where the current is flowing in a rectangular circuit jbut it will be seen…
Electricity · Magnetism
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