Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1061
or otherwise, and their polarity, or in otherwords, their direction of rotation, may be expressed bysaying that it is opposed to the motion of the hands of awatch or clock, assuming that the current is coming towarda person, and corresponds to the motion of the clock handswhen going away from the… … Fig. 422lines of force surrounding an active conductor in Fig. 421 indicating the direction of the current, whileFig. 422 may be called an end view/3 The smoke rings often produced from the smokers pipeare good representations of the whirling motion of theselines of force. A conductor that is swept…
