IN the preface the authors state that the time devoted in technical colleges to the study of alternating current machines varies between wide limits. It is stated that a definite text-book is chosen ...
As shown by the sub-title, this work is addressed to students of wireless telegraphy. It outlines, without very elaborate mathematics, the general principles of alternating currents and their ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果