The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 216
nductor across thefield (see Sec. 43). The left-hand rule gives the directions. Consider the simple loop in Fig. 128, between the poles NSof an electromagnet. If the wires + and — are connected toa source of direct current, the iron will be magnetized. At thesame time current flowing in the… … Fia. \ze> Principle of^hunT Motor to make the rotation continuous by making the proper connec-tion to the conductors as they come into place. By a line of reasoning very much, like that for the d. c. gen-erator, we can pass from this simple case to that of a four-poledrum-wound motor,…
Telegraph, Wireless · Radio
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