Elementary lessons in electricity and magnetism (1906)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916, Schwetzky, Otto H. L. [from old catalog] · Chicago, Thompson & Thomas · leaf 305
wing rules :—Lookmg at the S,-seeking pole of anelectromagnet^ the magnettsmg currents are circulatinground it in the same cyclic direction as the hands of aclock move J and, looking atthe N,-seeking pole of anelectromagnet^ the magnetis-ing curre7its a7-e circtdatinground it i7i the opposite…
Electricity · Magnetism
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