Theoretical Elements of Electro-dynamic Machinery, Том 1Van Nostrand, 1893 - 87 стор. |
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A O B alternating current amperes arrows assumed attraction axis B₁ C₁ carrying a current centre circle closed circular solenoid cloth coil component conductor considered cross-section cubic centimetre current turns curves determined diameter direction distance dynes per sq Elec Electric electromagnet element energy equal equilibrium equipotential curves equipotential surfaces equivalent ergs excitation field flux density flux intensity force galvanic circuit gradient grammes weight Hand-book Illustrated increase induced system inner iron core lines loop magnetic circuit magnetic flux magnetic potential magnetic stress magnetomotive magnetomotive force netic Nostrand's Science Series numerical outwards parallel particles path permeance perpendicular plane polar Practical prime intensity pull radial radii radius reluctance represented return flux ring rotate round side solid angle space sphere square centimetre straight wire stress exerted substance surface integral tion total flux total stress total tension uniform prime flux vector