Foundations of Electrical Engineering I. [antikvár]

Preface This textbook has been written to fulfil the requirements of students wishing to acquire a knowledge of the theory of the electric circuit and of the operating principles of electrical machines. Most of them will attend classes at Technical Colleges and Institutes where the organization of the courses of study is based upon the requirements of recognized public examination syllabuses. Thus, during the formative years of his engineering training, the student will be working for one or more of these examinations. Probably the most widely sought qualification is the National Certificate and it is to cover the groundwork of this in the sub-ject of electrical engineering that the book is primarily intended. College courses designed as preparation for the certificate must be both comprehensive and well-balanced in order to obtain the necessary approval from the Institution of Electrical Engineers. It is earnestly hoped that the book will be consi dered to fulfil these requirements. The field to be covered is so wide, however, that it could not be dealt with in a single volume of reasonable size and cost, without severely curtailing discussion of many quite important aspects of the subject. Instead the material has been arranged in two volumes, the first giving a full statement of elementary principles and thus constituting a good foundation for future study. The text includes many worked examples and, at the end of the book, there is a representative collection of problems to be worked by the student. When compiling such a collection there is always a temptation to make full use of old examination papers. At first sight it might appear that this is desirable in order to accustom the student to the type of question which he is likely to'meet in his particular examination. It is rather doubtful, however, whether such selections, unless they are excessively numerous, really serve this purpo.se. The authors have preferred to give originál problems, chosen to illustrate the fundamental principles and following the text as closely as possible, leaving the teacher or student to acquire copies of old examination papers which are usually quite easily and cheaply obtained. Another feature of the book which, it is hoped, will be favourably received takes the form of lists of suggestions for experimentál work in the college laboratory. These lists are given at the ends of most of the chapters. They are not, of course, exhaustive and their suitability must depend upon the equipment available, but Y