Robison's Manual of radio telegraphy and telephony for the use of naval electricians (1918)
Robison, S. S. (Samuel Shelburne), b. 1867, United States Naval Institute, Todd, David Wooster, Hooper, Stanford Caldwell · Annapolis, Md. : The United States Naval Institute · leaf 77
stance of the circuit considered as concentrated in C D. Then, if it requires a pull of 1 dyne (1/981 gram) to keep C D moving 72 MANUAL OF RADIO TELEGRAPHY AND TELEPHONY. at the rate of one centimeter per second, C D has unit resistance, unitcurrent flows, and, by definition, unit E. M. F. is… … i i l^i 1/ Fig. 15. If the size of C D is doubled (the speed and, therefore, E. M. F. remain-ing the same) the resistance is reduced to one-half, and we find that thecurrent is doubled as before; we say: (b) Current varies inversely as F M Fresistance. Combining (a) and (b) we can say current^…