Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 927
-912] Covunutator. 901 … by contact with the piece 0 ; then when, in consequence of rotation, 0takes the place of o\ the current retains the same direction ; for, as it isthen reversed in the coils, o has become positive and 0 negative, and soforth, as long- as the coil isturned. With the two springs band c alone, the…
Physics
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