Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 73
ollowing equation is used: impedance = V resistance -+- (inductance reactance — capacity reactance)* or using symbols, Z = > k: - X,- (3) EXAMPLE IV.—A current has a frequency of 100. It passes througha circuit of 4 ohms resistance, of 150 milli-benrys inductance, and of 22microfarads capacity.… … COIL FlG. 1,301.—Simple choking coil. There is an important difference in the obstruction offeredto an alternating current by ordinary resistance and by reactance. Resistance obstructsthe current by dissipating its energy, which is converted into heat. Reactance obstructsthe current by setting up a…
Electrical engineering
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