Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 248
t the e.m.f. changes its direction in the horizontalposition of the coil, corresponding to a = 180°. If a curve be drawn, havingthe values of the angle a for abscissae and the corresponding instantaneousvalues of the induced e.m.f. for ordinates, the well-known sine curve isobtained. We can,… … Fig. 217 co.t is identical with the angle a, and we may write equation (109) in theform /v e = e.sin (w.t) (no)- If the abscissae of our curve be made to represent the time i insteadof the angle a, we merely alter the scale and obtain the curve shown inFig. 217. This shows clearly how the e.m.f.…
Electrical engineering
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