Abstract
THIS book was primarily written for the electrical engineering students of the University of Washington. It discusses in detail many of the transient phenomena which ensue whenever any of the electric “constants” of a circuit suddenly alters in value. Excellent oscillograms are given, the study of some of which will be of value to advanced students. As a rule, the transient quiver induced in the current wave by a sudden disturbance of the circuit dies away rapidly. In some cases, however, it attains excessive values and does damage. In a few cases it is continually in evidence, as, for example, when an electric arc forms part of the circuit. The question of “transients” therefore needs to be studied carefully by electrical engineers. The introduction is rather too condensed. For example, we are told that the Ohm's law of the dielectric circuit is that the dielectric flux equals the voltage divided by the elastance of the circuit. The elastance is the reciprocal of the condensance. The former is measured in “darafs” and the latter in farads. It is not easy to picture what the authors mean, as apparently the cross-section of the dielectric circuit is constant.
Electric Transients.
Prof.
C. E.
Magnusson
A.
Kalin
J. R.
Tolmie
By. Pp. viii + 193. (New York and London: McGraw-Hill Book Co. Inc., 1922.) 12s. 6d.
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Electric Transients. Nature 111, 840 (1923). https://doi.org/10.1038/111840c0
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DOI: https://doi.org/10.1038/111840c0