Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples (1911)
Moreton, David Penn, 1882- · Chicago, The Reilly & Britton co · leaf 358
theohmic resistance of the circuit (R),the inductance (L) in henrys, thecapacity (C) in farads, frequency (f)in cycles per second, and the constant(27r), which is equal to (2 X 3.1416)or 6.2832. 386. Impedance and Reactance of aCircuit.—The impedance of a circuit inwhich there is an alternating… … Fig. 285 Z = ^R2+ (^ 2 7rf L- -c) (137) 27rf The impedance of a circuit is composed of two factors, theresistance and the reactance. The reactance is the quantitywhich, when multiplied by the current, gives the componentof the impressed e.m.f. that is at right angles to the current.The resistance…
Electrical engineering
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