Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 294
field of varyingstrength ; by the movement of a conductor through whicha variable current is flowing; by the motion of the con-ductor itself in which the current is to be induced; or,finally, by any combination of these five variables. Theycan best be studied experimentally. 260. Induction by a… … Fig. 184.—Current induced by magnet. bar magnet be thrust into the center of the coil, the galva-nometer will show an immediate deflection. The magnethas no power except when in motion, for if allowed toremain quietly inside the coil the galvanometer needle comesto rest again and indicates no…
Physics
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