Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 24
ave R_R^ E^ ER R^ R^ 7?3whence T R = III (8) R^ R^ 7?3 INTRODUCTION. 13 Magnetic Effect of the Electric Current. 9. The magnetic effect of the electric current. — Before describ-ing the magnetic action of the electric current, it is necessary toconsider some of the properties of ordinary magnets of… … Fig. 1. glass. Thus Fig. i shows the arrangement of iron filings betweentwo unlike poles of two magnets, and Fig. 2 shows the arrange-ment of iron filings in the neighborhood of a piece of soft ironplaced between two unlike poles of two magnets. The appear-ance of these figures suggests that…
Dynamos · Electric motors
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