ELEMENTARY ELECTRICAL ENGINEERING IN THEORY AND PRACTICE A CLASS BOOK FOR JUNIOR AND SENIOR STUDENTS BY J. H. ALEXANDER, M.B., A.I.E.E. LATE LECTURER ON ELECTRICAL ENGINEERING AT THE KILMARNOCK ACADEMY HAVING given Lectures upon Electrical Engineering for several winters to an Evening Continuation Class, composed chiefly of young artisans, in a large engineering and manufacturing town-the class being divided into junior and senior sections, primarily for first and second year men-it occurred to me that if my Lectures were put into printed form suitable for publication their sphere of usefulness would be increased. The present volume accordingly gives the substance of the lectures as delivered, supplemented (where it seemed advisable) by additional matter. In course of delivery the lectures were illustrated by means of models, apparatus, lantern slides, black-board diagrams, &c., my aim being to put the subject before my students in such a way that they should find no difficulty in acquiring some knowledge of the fundamental principles as well as of the practical applications of electricity and magnetism. It is hoped that the illustrations now given in the printed work will help to answer the same purpose. But readers of the volume should not omit to visit (as students) electric generating stations to see actual work in progress. A few of the illustrations are from actual machines and apparatus in everyday use, whilst many others are drawn diagrammatically to illustrate the principles upon which the apparatus represented depend for their action. The characteristic curve figures given are reproduced from actual tests taken by myself in an electrical engineering laboratory. With |