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 553
ythe current to the movable part of the meter. If thecurrent is now caused to flow around the coil of wire,it will produce a torque or twist which will move thebobbin again the two hair springs, S. Like magneticpoles repel each other and unlike magnetic polesattract each other. The current flowing… … figure 77. will force through the winding of the movable bobbinso that the bobbin will continue to move until thetorque exerted by the current equals the counter torqueexerted by the spiral springs. A pointer, fastened to ELECTRICITY FOR ENGINEERS 135 the shaft upon which the bobbin is mounted,…
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-161-69.webp)
