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 619
es in the reverse direction. That is,a coil rotating uniformly in a uniform magnetic field, has inducedin it an alternating E. M. F. which varies as the sine of an angle,and is represented by a sinusoidal curve. 690. The Earth Inductor. The earth inductor is a coil, Fig. 451,usually of a large… … Fig. 451. to the magnetic meridian. By revolving the coil through 180°, the magnetic flux is taken out ofone face and put in at the otherface. Let H= the horizontal in-tensity of the earths magneticfield, 6 = the area of the coil face,and R = the resistance of the cir-cuit. Then the quantity of…
Physics
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