Abstract
A SURVEY of the principles of electrical engineering intended for students in universities and the advanced classes in technical schools is given in this book. The author's treatment of the subject can be commended, although in places the condensation will make it difficult for the uninitiated to follow his reasoning. He begins by a careful discussion of electrostatic theory, proving, in some cases by novel methods, the capacity formulæ which are used by engineers. He describes how the dielectric is sometimes graded in high-tension cables, and shows how the requisite calculations to find the electric force in the dielectric can be made. No mention is made, however, of the severe limitations imposed on the use of intersheath methods of grading by the large capacity current which flows in the sheath. The corona effect is mentioned, but the formula given is not so accurate as that due to F. W. Peek. The formulas for the sparking voltages between spheres are not given.
Electrical Engineering.
By Dr. T. F. Wall. Pp. xi + 491. (London: Methuen and Co., Ltd., 1921.) 21s.
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R., A. Electrical Engineering . Nature 108, 205 (1921). https://doi.org/10.1038/108205a0
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DOI: https://doi.org/10.1038/108205a0