Abstract
NEARLY every piece of electrical apparatus has, as Mr. Spooner points out, a magnetic circuit. In the majority of cases this circuit is the governing factor which decides the size, shape, weight, and cost of the apparatus; a knowledge of its laws and the materials from which it may be constructed is therefore very desirable on both technical and economical grounds. Unfortunately, to those not already familiar with magnetic theory, the whole subject is somewhat repellent and irksome. The unlovely names of units and properties (which to the beginner appear far too numerous), the lack of uniformity among different authorities, and a feeling that the whole subject is not quite free from a tinge of empiricism, are among the probable reasons for this state of things. Anyone who feels like this will welcome Mr. Spooner's book.
Properties and Testing of Magnetic Materials.
By Thomas Spooner. Pp. xiv + 385. (New York: McGraw-Hill Book Co., Inc.; London: McGraw-Hill Publishing Co., Ltd., 1927.) 25s. net.
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R., A. Properties and Testing of Magnetic Materials. Nature 121, 240 (1928). https://doi.org/10.1038/121240b0
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DOI: https://doi.org/10.1038/121240b0