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 155
econductor, then will the middle finger, bent at right angles to boththumb and forefinger, show the direction of the induced current. The application of this rule is shown in fig. 132. Here the righthand is so placed at the north pole of a magnet, that the forefingerpoints in the direction of the… … Fig. 134.—The palm rule for direction of induced current: If the palm of the right hand beheld against the direction of the lines of force, the thumb in the direction of the motion,then the fingers will point in the direction of the induced current. Amperes Rule.—If a man could swim in a conductor…
Electrical engineering
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