Duff, A. Wilmer (Alexander Wilmer), b. 1864, ed, Guthe, Karl Eugen, 1866-1915, Hallock, William, 1857-1913, Lewis, E. Percival (Exum Percival), 1863-1925, Goodspeed, Arthur W. (Arthur Willis), b. 1860, Carman, Albert Pruden, b. 1861, McClung, Robert Kenning, 1874- · Philadelphia, P. Blakiston's Son & Co · leaf 557
FlG. 396. Fig. 397 ment, which is called a solenoid. The points at the top enable oneto suspend it from two mercurj^ cups to which current connec-tions may be made in such a way as to give the whole free move-ment about a vertical axis. The resultant lines of the field withinthe solenoid are…
Physics
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-161-68.webp)
