Principles of Heavy Current Engineering
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engineering
Other Volumes in the Series
2
From Circuits to Computers
3
Modern Physical Electronics
4
Microwaves, Communications and Radar
o review oF ~he prlnOiples oF el80~riOOI & eleoeronio engineering EDITED BV L. SOLVMAR
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~[f1)~Ö[f1)@®[JÖ[f1)~ A. M. HOWATSON
and P. G. LUND
LONDON
CHAPMAN AND HALL
First published 1974 by Chapman and Hall Ltd 11 New Fetter Lane, London EC4P 4EE ©
1974 Chapman and Hall Ltd
Typeset by Preface Ltd, Salisbury,
ISBN 978-0-412-11660-5 ISBN 978-94-011-6899-1 (eBook) DOI 10.1007/978-94-011-6899-1
This limp bound edition is sold subject to the condition that it shall not, by way of trade or otherwise, be lent, re-sold, hired out, or otherwise circulated without the publisher's prior consent in any form of binding or cover than that in which it is published and without a similar condition including this condition being imposed on the subsequen t purchaser. All rights reserved. No part of thisbook may be reprinted, or reproduced or utilised in any form or by any electronic, mechanical or other means, now known or hereafter invented, including photocopying and recording, or in any information stage and retrieval system, without permission in writing from the Publisher.
Distributed in the U .S.A. by Halsted Press, a Division of John Wiley & Sons, Inc., New York Library of Congress Catalog Card Number 73-15221
serles preFooe We present here a new type of book intended for a wide audience. Before describing the approach used in the book and the readers we, had in mind, it might be worthwhile to say a few words about the aims the book is not planned to fulfil. It is not an encyc10paedia enumerating the main applications of the subject, and crammed fuH of practical data; nor is this a very simple survey designed for complete novices. Perhaps the best way of describing the people for whom the book is intended is to give a few examples. Let us take an Arts graduate who has been offered a job by an electrical company (say computers). It becomes expedient for this graduate to leam about circuits and computers and he would probably also like to look at some other branches of Electricity. All he needs to do is to brush up his O-level mathematics and read as much of the four volumes as he finds interesting. Our next example is a University Professor. Unless he is near to retiring age he would likely be a specialist in no more than a few branches of Electricity. Let us now ass urne that an old schoolmate of his comes to visit hirn. This friend specialises in Plasmas, the Professor is an expert in Circuits. The Professor is very reluctant to admit that he knows next to nothing about Plasmas. He is anxious to find a simple description that he can digest in half an hour. This is the book for it. And of course the same applies to other university staff lower down the hierarchy. The next category I would like to mention is undergraduates. As is weIl known, the large majority of them are in a perpetual state of confusion. They are taug
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