General Concepts and Definitions 1 II. Balanced Polyphase Circuits IX. Unbalanced Polyphase Circuits X. Alternating-Current Measurements XI.

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General Concepts and Definitions 1 II. Balanced Polyphase Circuits IX. Unbalanced Polyphase Circuits X. Alternating-Current Measurements XI. Symmetrical Components XV. It is assumed that the student has finished the usual courses in differential and integral calculus, or at least has some knowledge of differentiation and integration. An endeavor has been made to arrange the material in a logical sequence so as to lead the student gradually from the simple to the more complex analyses in al ternating-current circuits.

The method of presentation is an outgrowth of the teaching experience which the authors have had at several institutions, and an effort has been made to produce a teachable book. In carrying out this idea, free use has been made of illustrative examples and line drawings. Also a number of illustrative oscillograms of actual circuit performance have been included. In order that many of these oscillograms may be made the basis of further study, rather complete legends have been given.

Problems for which answers are given have been included in many places in the text material immediately following the presentation of certain principles. These problems are primarily intended as exercises which will help the student determine for himself whether he has a work able knowledge of the principles involved.

The sequence of the prob lems at the end of the chapters corresponds to the order in which the text material is presented. The end-of-chapter problems, therefore, form a suitable list from which regular assignments may be made.

In consequence, selected parts of the last six chapters may be studied to the extent of the time available. We acknowledge our indebtedness to the earlier writers in this field and to our many colleagues who have assisted and encouraged us in the production of this book. In particular we wish to thank Mr. Potter for his advice and assistance. Although these additions add some material to the text, it is possible to omit them without breaking the continuity or theoretical structure of the subject matter.

The addition of the loss and phase characteristics of elementary four-terminal networks at the close of Chapter IV, for example, is a subject of considerable importance to communication majors but is not essential to an understanding of the material that follows. In Chapter V the material pertaining to the Q of electrical circuits has been revised to make this subject more directly useful and under standable for the reader.

The nodal method of circuit analysis is included for the first time because of its importance to the engineer engaged in the analysis and design of vacuum tube circuits.

An additional method of wave analysis which reduces materially the amount of labor required to analyze certain classes of waves has been incorporated in Chapter VI. A method of designing tuned coupled circuits to have a specified decibel variation over a specified band width has been included in Chapter VII.

Also incorporated is the subject of polarity markings employing a dot-marked terminal. The three-origin vector diagram of a polyphase circuit which is particularly useful to power engineers has been added to Chapter VIII. Minor changes have been made throughout the text in an attempt to aid the student to grasp more readily the principles presented. The end-of-chapter problems have been rather completely revised, and additional problems have been included.

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## Alternating-current circuits

Netaxe In complex mode normal scientific calculator allternating In equation solving but how can we do that click [CALC] button after making equation lor 2 does not? In order that many of these oscillograms may be made the basis of further study, rather complete legends have been given. The Solution of Alternating Current Circuits 31 2. You can do the sum. These problems are primarily intended as exercises which will help the student determine for himself whether he has a work able knowledge of the principles involved. The Solution of Alternating Current Circuits 9. It is assumed that the student has finished the usual courses in differential and integral calculus, or at least has some knowledge of differentiation and integration.

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## Alternating-Current Circuits [3ed] - Kerchner and Corcoran [inglês]

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