Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 50
ses in the direct ratio; thusif N = 100,000 cycles, the frequency ofa radio-frequency alternator, then thereactance of coil L = 34,540 ohms. The flow of current through L isgoverned both by the reactance and theresistance, and the impedance of such a_ circuit is expressed as follows: Impedance = V… … Fig. 43—Alternating Current Circuit with ConcentratedInductance. Impedance = V 20= -}- 10= = 22.3 ohms approximately. EFor direct or continuous current. Ohms law is expressed I = —, but for alternating REcurrent the formula is modified to, I = —. If the pressure of the alternator is 110 volts, Z110…
Telegraph, Wireless
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