Elementary treatise on electricity and magnetism : (1905)
Foster, G. C. (George Carey), 1835-1919, Joubert, J. (Jules François), 1834-1910, Porter, Alfred W. (Alfred William), 1863-1939 · London ; New York ; Bombay : Longmans, Green, and Co. · leaf 415
ngle a from this position, or when its axismakes an angle a with the meridian, themagnetic flux is N= HS cos a. If w be the velocity of rotation, and Tthe period, or the duration of one completerevolution, we have at time t, measured ^^^- ^77. from an instant at which the axis of the coil is in the… … = HS sma ,. = wHS siXKat = - HS sm ■—. dt dt The magnetic flux through the coil varies most rapidly when itsinstantaneous value is zero. this is when the plane of the coU is 392 SPECIAL CASES OF INDUCTION [328- parallel to the meridian, and therefore a is a right angle. At this instant, therefore,…
Electricity · Magnetism
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