Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 134
FlG. 115.—Right hand palm rule to determine the direction of the magnetic field around aconductor carrying a current: Place the palm of the outstretched right hand above andto the right side of the wire with the ringers pointing in the direction of the current, andthe thumb extended at right… … Fig. 116.—Lines of force of a circular loop. If a current flow through the loop in the directionindicated, the lines of force both inside and outside the loop, will cross the plane of theloop at right angles, and all those which cross the loop on the inside will pass throughthe plane in one…
Electrical engineering
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