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 36
the conductor in the direction inwhich the current is flowing, the north-seeking or north-pointingpole of the needle will point in a clockwise direction around theconductor—that is, it will point in the direction it would assumeif following the advancing hand of a clock having the conductoras a… … Magnetic f fstraight wireCurrent flo 0 gff» Q Ribht hdncL rule jet direction oj current *rvd lines of force curved finger tips will then indicate the direction of the mag-netic effect, Fig. 10. (&) Imagine an ordinary right-hand wood screw being ad-vanced into a block in the direction in which…
Telegraph, Wireless · Radio
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