Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 462
pole marked N, and pass throughthe air-gap and armature into the south pole marked S. ELECTRICITY FOR ENGINEERS 43 As we begin to move the wire or armature, it cutsthrough these lines of force and begins to generate anelectromotive force, which in turn will cause the cur-rent to flow if the circuit… … FIGURE 17. the current to the outside wires, are so set that theychange the connection of the wire a at the time that itpasses from one pole to the other. By this means thecurrent in the external circuit is kept constant indirection, although it alternates in the armature. The faster we turn our…