Alternating Currents and Alternating Current Machinery, Vol. 2: Text-Book on Electro-Magnetism and the Construction of Dynamos (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from Alternating Currents and Alternating Current Machinery, Vol. 2: Text-Book on Electro-Magnetism and the Construction of Dynamos

Tm: matter of this book consists, in essence, of the lectures which have been delivered for two or three years past by Professor D. C. Jackson to the senior and graduate students in Electrical Engineering at the University of Wisconsin, but Professor J. P. Jackson, of the Pennsylvania State College, care fully revised and extended the manuscript before it was sent to the printers. The method carried out in the book is based on the self-evident but little recognized principle, that methods which have proved best in teaching other branches of Engi neering must be equally advantageous in treating Electrical subjects. A treatise on electromagnetism or on alternating currents should therefore deal with its subject in much the same way that thermodynamics and the steam engine, hydrau lios and hydraulic machinery, or the theory of structures are respectively presented in the best works on those subjects. The startlingly rapid advances which have been made in our knowledge of the phenomena relating to electro-magnet ism and the electric current, tend to confuse the best teachers, and doubtless account for the rather superficial methods used in many colleges, in which results only have been presented to the student with little reference to reasons. Cthis error is generally admitted, and it is hoped that this work may, by furnishing a satisfactory text-book, aid those teachers who desire to improve their methods.

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