Author: John Roberts

Publisher: Forgotten Books

Published: 2015-06-26

Total Pages: 232

ISBN-13: 9781330199077

Excerpt from Laboratory Work in Electrical Engineering (Preliminary Grade): A Series of Laboratory Experiments for First and Second Year Students of Electrical Engineering Whilst conducting laboratory classes in Electrical Engineering the author has felt the need of a laboratory Manual suitable for that portion of the students training usually called "Preliminary Grade," and preceding the more advanced work on Dynamos and Motors. To successfully carry on a large class without some such help is an impossibility, and the author hopes that this attempt to meet an undoubted want will prove of some service to teacher and student alike. The book contains, besides chapters on the more purely physical measurements of resistance, E.M.F., and Current, special chapters devoted to the Potentiometer and Calibration of electric measuring instruments. The last chapter (Section M) consists of a series of purely technological experiments of a miscellaneous character. The author wishes to draw special attention to the fact that almost every experiment in this and the preceding chapter is followed by an example actually worked by his own students at Blackburn. These examples, besides serving to indicate the degree of accuracy expected from an average student, will also afford considerable help to a student carrying out the experiment. For obvious reasons these practical examples are not written up quite complete. An elementary knowledge only of algebra has been assumed. The author would be glad at any time to receive and acknowledge suggestions for additional experiments for this chapter to be inserted as an appendix in a future edition. Attention is also drawn to the standard specifications in Appendix I., and to the Tables, etc., in Appendix II., which contain all the figures of reference required in the book. The author's heartiest thanks are due to his former teacher. Professor W. W. Haldane Gee, of Manchester, for many valuable suggestions and advice; and to Mr. Fred Farrar, Demonstrator at Blackburn, for his assistance in choosing the worked examples and for reading proofs. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.