# Electric Circuits Fundamentals

## Thomas L. Floyd

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Appropriate for introductory courses in Electric Circuits, and Intro to DC/AC Circuits offered by vocational and technical schools, and community colleges.This acclaimed text offers a thorough, practical introduction to dc/ac analysis geared to the technician-level student -- and written at a level at which these students are comfortable! Floyd's comprehensive treatment focuses on fundamental principles and their applications to solving real circuit analysis problems, limiting mathematics to what's needed for understanding. He uses straightforward explanations and a strong troubleshooting emphasis to give technician-level students the problem-solving experience they need in a style that makes complex material thoroughly understandable.

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From the Inside Flap:

Preface

This fifth edition of Electric Circuits Fundamentals provides a comprehensive coverage of basic electrical and electronic concepts, practical applications, and troubleshooting. The organization has been improved for a smoother and more logical flow of the material in certain areas. In this edition, many topics have been strengthened and improved, and some new topics and features have been added. Also, a completely new text design and layout enhance the text's appearance and useability.

This textbook is divided into two parts: DC Circuits in Chapters 1 through 7 and AC Circuits in Chapters 8 through 15. NEW FEATURES AND IMPROVEMENTS

Engineering Notation: Chapter 1 includes an expanded coverage of engineering notation and the use of the calculator (TI-86) in scientific and engineering notation.

Electrical Safety: Chapter 2 introduces electrical safety. It is supplemented by a feature called Safety Point found throughout portions of the text. Safety Points are identified by a special logo and design treatment.

Troubleshooting: An expanded coverage of troubleshooting begins in Section 3-8 with an introduction to troubleshooting. A systematic approach called the APM (analysis, planning, and measurement) method is introduced and used in many of the troubleshooting sections and examples. A new logo identifies troubleshooting features.

Circuit Simulation Tutorials: A website tutorial associated with most chapters can be downloaded for student use. These tutorials introduce students to elements of Electronics Workbench™, as needed, on a chapter-by-chapter basis. These tutorials may be found at prenhall/floyd.

Circuit Simulation Problems: A new set of problems at the end of most chapters reference circuits simulated with both Electronics Workbench and CircuitMaker® on the CD-ROM that accompanies the text. Many of these circuits have hidden faults that the student must locate using troubleshooting skills. Results are provided in a password-protected file on the CD-ROM. Circuit simulation problems and exercises on the CDROM are indicated by a special logo.

Hands-On Tips: Called HOTips for short, this feature provides useful and practical information interspersed throughout the book. They generally relate to the text coverage but can be skipped over without affecting an understanding of chapter material. HOTips are identified by a special logo and design treatment.

Biographies: Brief biographies of those after whom major electrical and magnetic units have been named are located near the point where the unit is introduced. Each biography is indentified by a special design treatment.

Key Terms: Terms identified as the most important in each chapter are listed as key terms on the chapter opener. Within the chapter, key terms are highlighted in color and with a special icon. Each Key Term is also defined in the Glossary.

Chapter Reorganization: Several chapters in the AC part of the text have been rearranged to provide a smoother and more logical flow of topics. The new chapter sequence is as follows: Chapter 9: Capacitors, Chapter 10: RC Circuits, Chapter 11: Inductors, Chapter 12: RL Circuits, Chapter 13: RLC Circuits and Resonance, and Chapter 14: Transformers. ADDITIONAL FEATURES Full-color format A two-page chapter opener for each chapter with an introduction, chapter outline, chapter objectives, key terms, and application assignment preview An introduction and list of objectives at the beginning of each section within a chapter keyed to the chapter objectives An Application Assignment at the end of each chapter (except Chapter 1) Many high-quality illustrations Numerous worked examples A Related Problem in each worked example with answers at the end of the chapter An Electronics Workbench/CircuitMaker simulation on CD-ROM for selected worked examples An Electronics Workbench/CircuitMaker exercise in selected Application Assignments Section Reviews with answers at the end of the chapter Troubleshooting section in many of the chapters Self-test in each chapter with answers at the end of the chapter Problem set at the end of each chapter divided by chapter sections and organized into basic and advanced categories. Answers to odd-numbered problems are provided at the end of the book. A comprehensive Glossary at the end of the book. Terms that appear boldface or in color in the text are defined in the glossary. All Standard resistor and capacitor values are used throughout. ACCOMPANYING STUDENT RESOURCES

New—Student Workbook by James K. Gee. Features step-by-step explanations of textbook material, additional examples with solutions, explanatory tables, reminders, and a Problem Set for every textbook section. Odd-numbered answers to Problem Set questions are included at the end of the Student Workbook. Gee's Student Workbook is tied section by section to the Floyd text, thus enabling students to easily locate specific sections with which they are having difficulty or would like additional practice. (ISBN 013-019392-5)

New—StudyWizard e-tutorial CD-ROM. Students can enhance their understanding of each chapter by answering the review questions and testing their knowledge of the terminology with StudyWizard. This program is available separately from the text. Contact your local bookstore for more information.

New—Electronics Workbench/CircuitMaker CD-ROM. Packaged with each text, this software includes simulation circuits for selected examples and end-of-chapter problems and a Student Version of CircuitMaker. Electronics Workbench software can be obtained through your local bookstore, or by contacting Electronics Workbench at 800-263-5552, or through their website at electronicsworkbench.

Experiments in Electronics Fundamentals and Electric Circuits Fundamentals Fifth Edition, by David Buchla. (ISBN 0-13-017002-X)

Companion Website (prenhall/floyd). This website offers students a free online study guide that they can check for conceptual understanding of key topics. It includes simulation tutorials in Electronics Workbench.

Electronics Supersite (prenhall/electronics). Students will find additional troubleshooting exercises, links to industry sites, an interview with an electronics professional, and more. INSTRUCTOR RESOURCES

New—PowerPoint CD-ROM. Contains slides featuring all figures from the text, of which 150 selected slides contain explanatory text to elaborate on the presented graphic. This CD-ROM also includes innovative PowerPoint slides for the lab manual by Dave Buchla. (ISBN 0-13-019386-0)

Companion Website (prenhall/floyd). For the professor, this website offers the ability to post your syllabus online with our Syllabus Builder. This is a great solution for classes taught online, self-paced, or in any computer-assisted manner.

Electronics Supersite (prenhall/electronics). Instructors will find the Prentice Hall Electronics Technology Journal, extra classroom resources, and all of the supplements for this text available online for easy access. Contact your local Prentice Hall sales representative for your "User Name" and "Passcode:"

Instructor's Resource Manual. Includes solutions to chapter problems, solutions to Application Assignments, a section relating SCANS objectives to textbook coverage, and a CEMA skills list. (ISBN 0-13-019387-9)

Lab Solutions Manual. Includes worked-out lab results for the Lab Manual by Buchla. (ISBN 0-13-019391-7)

Test Item File. This edition of the Test Item File has been checked for accuracy and features 166 new questions. (ISBN 0-13-019388-7)

Prentice Hall Test Manager. This is a CD-ROM version of the Test Item File. (ISBN 0-13-019389-5) ILLUSTRATION OF CHAPTER FEATURES

Chapter Opener: Each chapter begins with a two-page spread, as shown in Figure P-1. The left page includes the chapter number and title, a chapter introduction, and a list of sections in the chapter. The right page has a list of chapter objectives, a list of key terms, an application assignment preview, and a website reference for circuit simulation tutorials and other helpful material.

Section Opener: Each section in a chapter begins with a brief introduction that includes a general overview and section objectives as related to the chapter objectives. An example is shown in Figure P-2.

Section Review: Each section in a chapter ends with a review consisting of questions or exercises that emphasize the main concepts presented in the section. This is also shown in Figure P-2. The answers to the Section Reviews are at the end of the chapter.

Worked Examples, Related Problems, and EWB/CircuitMaker Exercise: Numerous worked examples help illustrate and clarify basic concepts or specific procedures. Each example ends with a Related Problem that reinforces or expands on the example by requiring the student to work through a problem similar to the example. Selected examples contain an EWB/CircuitMaker exercise keyed to the CD-ROM. A typical worked example with a related problem and an EWB/CircuitMaker exercise is shown in Figure P-3. Answers to Related Problems are at the end of the chapter.

Troubleshooting Sections: Many chapters include a troubleshooting section that relates to the topics covered in the chapter and emphasizes logical thinking as well as a structured approach called APM (analysis, planning, and measurement). Particular troubleshooting methods such as half-splitting are applied.

Application Assignment: Putting Your Knowledge to Work: Application Assignments are located at the end of each chapter (except Chapter 1) and are identified by a special photographic logo and colored background design. A practical application of the material covered in the chapter is presented. In a series of steps, the student is required to compare circuit layouts with a schematic, analyze circuits using concepts and theories learned in the chapter, and evaluate and/or troubleshoot circuits. A typical Application Assignment is shown in Figure P-4. The Application Assignments are optional and skipping over them does not affect any other coverage.

Although they are not intended or designed for use as laboratory projects (except the laboratory of the mind), many of the application assignments use representations based on realistic printed circuit boards and instruments. Results and answers for the steps in the Application Assignments are provided in the Instructor's Resource Manual.

Chapter End Matter: The following pedagogical features are found at the end of each chapter:

SummaryEquations Self-Test Basic Problems Advanced Problems Electronics Workbench/CircuitMaker Troubleshooting Problems (keyed to CDROM) Answers to Section Reviews Answers to Related Problems for Examples Answers to Self-Test SUGGESTIONS FOR USING THIS TEXTBOOK

As mentioned before, this book is divided into two parts: DC Circuits and AC Circuits. The text can be used to accommodate a variety of scheduling and program requirements. Some suggestions follow:

Option 1: A two-term dc/ac sequence should allow sufficient time to cover all or most of the topics in the book. Chapters 1 through 7 can be covered in the first term and Chapters 8 through 15 in the second term.

Option 2: A modification of Option 1 is to add the coverage of capacitors through Section 9-5 and inductors through Section 11-5 to the first term do course.

Option 3: Yet another modification to Option 1 for those who prefer to cover reactive components before covering reactive circuits is to cover Chapter 11 on inductors immediately after Chapter 9 on capacitors. Then follow with Chapter 10, Chapter 12, and so on.

Option 4: A one-term do/ac sequence. Obviously, this approach will require selective and faster-paced coverage of much of the material. Since program requirements vary greatly, it is difficult to make specific suggestions for selective coverage. TO THE STUDENT

Any career training requires hard work, and electronics is no exception. The best way to learn new material is by reading, thinking, and doing. This text is designed to help you along the way by providing an overview and objectives for each section, numerous worked-out examples, practice exercises, and review questions with answers.

Don't expect every concept to be crystal clear after a single reading. Read each section of the text carefully and think about what you have read. Work through the example problems step-by-step before trying the related problem that goes with the example. Sometimes more than one reading of a section will be necessary. After each section, check your understanding by answering the section review questions.

Review the chapter summary and equation list. Take the multiple-choice selftest. Finally, work the problems at the end of the chapter. Check your answers to the self-test at the end of the chapter and the odd-numbered problems against those provided at the end of the book. Working problems is the most important way to check your comprehension and solidify concepts. CAREERS IN ELECTRONICS

The field of electronics is very diverse, and career opportunities are available in many areas. Because electronics is currently found in so many different applications and new technology is being developed at a fast rate, its future appears limitless. There is hardly an area of our lives that is not enhanced to some degree by electronics technology. Those who acquire a sound, basic knowledge of electrical and electronic principles and are willing to continue learning will always be in demand.

The importance of obtaining a thorough understanding of the basic principles contained in this text cannot be overemphasized. Most employers prefer to hire people who have both a thorough grounding in the basics and the ability and eagerness to grasp new concepts and techniques. If you have a good training in the basics, an employer will train you in the specifics of the job to which you are assigned.

There are many types of job classifications for which a person with training in electronics technology may qualify. A few of the most common job functions are discussed briefly in the following paragraphs.

Service Shop Technician: Technical personnel in this category are involved in the repair or adjustment of both commercial and consumer electronic equipment that is returned to the dealer or manufacturer for service. Specific areas include TVs, VCRs, CD players, stereo equipment, CB radios, and computer hardware. This area also offers opportunities for self-employment.

Industrial Manufacturing Technician: Manufacturing personnel are involved in the testing of electronic products at the assembly-line level or in the maintenance and troubleshooting of electronic and electromechanical systems used in the testing and manufacturing of products. Virtually every type of manufacturing plant, regardless of its product, uses automated equipment that is electronically controlled.

Laboratory Technician: These technicians are involved in breadboarding, prototyping, and testing new or modif...

From the Back Cover:

Key Benefit: Provides a thorough, comprehensive, and practical coverage of basic dc and ac concepts and circuits. Key Topics: Emphasizing troubleshooting and applications, the book contains a significant number of important features that facilitate an understanding of the material. The fourth edition of Electric Circuit Fundamentals now includes Electronics Workbook exercises in selected examples and certain troubleshooting and application assignment sections to provide experience in computer-aided circuit analysis and in troubleshooting. Market: A valuable reference book on the fundamentals of electronic circuits for any technical professional.

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