Elementary treatise on electricity and magnetism (1903)
Foster, George Carey, 1835-1919, Joubert, Jules François, 1834-1910. Traité élémentaire d'électricité, Porter, Alfred William, 1863- joint author · London, New York, Longmans, Green, and co. · leaf 414
ion, or when its axismakes an angle a with the meridian, themagnetic flux is iV= HS cos a. If (a be the velocity of rotation, and Tthe period, or the duration of one completerevolution, we have at time t, measured ^i**- ^^^■ from an instant at which the axis of the coil is in the meridian, a =… … cosa j-Tci • d^ TTa • J Sir ytc: • 25r< = HS sma — = wHS smcoif = - HS sin -—. dt dt T T The magnetic flux through the coil varies most rapidly when itsinstantaneous value is zero: this is when the plane of the coil is 392 SPECIAL CASES OF INDUCTION [328- paiallel to the meridian, and therefore…
Electricity · Magnetism
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