An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 172
N 143 wire AD is moving up, and the current tends to flow fromA to D. The result is that during the first half turn the cur-rent goes around the loop in the direction ADCB. During thesecond half turn the current is reversed and goes around in thedirection A BCD. To show that this really does happen… … Fig. 88. — Coil rotating between poles of electromagnet and a single loop con-nected to slip rings. is generated in the coil an alternating current, which reversesits direction twice in every revolution. Moreover, it will beseen that the induced e.m.f. starting at zero goes up to a maxi-mum and…
Electricity · Magnetism
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