Where to Find and Download Principles of Electric Circuits Floyd 9th Edition PDF for Free Online
Principles of Electric Circuits Floyd 9th Edition PDF Free Download
If you are an electrical engineering student or a hobbyist who wants to learn more about electric circuits, you might be interested in finding a free PDF version of one of the best books on this topic: Principles of Electric Circuits by Thomas L. Floyd. In this article, we will tell you what this book is about, what features it offers, and how you can download it for free from two different sources.
principles of electric circuits floyd 9th edition pdf free download
Introduction
Electric circuits are the foundation of electrical engineering and electronics. They are used to design, analyze, and troubleshoot various devices and systems that use electricity, such as computers, smartphones, robots, power plants, and more. To understand how electric circuits work, you need to learn some basic principles and concepts, such as voltage, current, resistance, Ohm's law, Kirchhoff's laws, series and parallel circuits, capacitors, inductors, transformers, diodes, transistors, and more.
What are the principles of electric circuits?
The principles of electric circuits are the rules and laws that govern how electric charges move and interact in a circuit. They help us to calculate and predict the behavior and performance of different circuit elements and configurations. Some of the most important principles of electric circuits are:
Ohm's law: This law states that the voltage across a resistor is proportional to the current flowing through it. The constant of proportionality is called resistance. Ohm's law can be written as V = IR, where V is voltage, I is current, and R is resistance.
Kirchhoff's current law (KCL): This law states that the algebraic sum of currents entering a node (or junction) in a circuit is zero. This means that the total current flowing into a node is equal to the total current flowing out of it.
Kirchhoff's voltage law (KVL): This law states that the algebraic sum of voltages around a closed loop in a circuit is zero. This means that the total voltage rise in a loop is equal to the total voltage drop in it.
Series and parallel circuits: These are two common ways of connecting circuit elements. In a series circuit, all elements are connected end-to-end, so they share the same current. In a parallel circuit, all elements are connected across the same pair of nodes, so they share the same voltage.
Capacitors: These are devices that store electric charge and energy in an electric field. They consist of two conductive plates separated by an insulator (or dielectric). The amount of charge stored by a capacitor depends on the voltage across it and its capacitance. The capacitance is a measure of how much charge a capacitor can store per unit voltage. Capacitors can be used to filter, smooth, store, or block signals in a circuit.
Inductors: These are devices that store electric current and energy in a magnetic field. They consist of a coil of wire wrapped around a core (or air). The amount of current stored by an inductor depends on the voltage across it and its inductance. The inductance is a measure of how much current an inductor can store per unit change in voltage. Inductors can be used to filter, smooth, store, or block signals in a circuit.
Transformers: These are devices that transfer electric power from one circuit to another using electromagnetic induction. They consist of two coils of wire (called primary and secondary) wrapped around a common core (or air). The primary coil is connected to an AC voltage source, which induces an AC voltage in the secondary coil. The ratio of voltages between the primary and secondary coils depends on the ratio of turns between them. Transformers can be used to step up or step down voltages or currents in a circuit.
Diodes: These are devices that allow current to flow only in one direction. They consist of two terminals (called anode and cathode) made of different types of semiconductor materials (usually p-type and n-type). When a positive voltage is applied to the anode relative to the cathode, the diode conducts current (called forward bias). When a negative voltage is applied to the anode relative to the cathode, the diode blocks current (called reverse bias). Diodes can be used to rectify, clip, clamp, or protect signals in a circuit.
Transistors: These are devices that amplify or switch electric signals. They consist of three terminals (called base, collector, and emitter) made of different types of semiconductor materials (usually p-type and n-type). There are two main types of transistors: bipolar junction transistors (BJTs) and field-effect transistors (FETs). In BJTs, the base terminal controls the current flow between the collector and emitter terminals. In FETs, the base terminal controls the voltage across the channel between the collector and emitter terminals. Transistors can be used to amplify, switch, or control signals in a circuit.
Who is Thomas L. Floyd?
Thomas L. Floyd is an American author and educator who has written several textbooks on electrical engineering and electronics topics, such as digital fundamentals, electronic devices, electric circuits, and digital communications. He has over 40 years of experience in teaching and writing, and has received numerous awards and recognitions for his work. He holds a Bachelor of Science degree in Electrical Engineering from Purdue University, and a Master of Science degree in Electrical Engineering from Stanford University.
Why is this book important for electrical engineering students?
This book is important for electrical engineering students because it provides them with comprehensive, straightforward, and practical coverage of the basics of electrical components and circuits. It helps them to develop their skills and confidence in applying fundamental circuit laws and analysis methods to various basic circuits, with an emphasis on applications. It also prepares them for more advanced topics, such as digital electronics, microcontrollers, signal processing, and power systems. The book is suitable for both beginners who want to learn from scratch, and experienced students who want to review or refresh their knowledge.
Features of the book
The book has many features that make it attractive, useful, and user-friendly for students. Some of these features are:
Comprehensive and straightforward coverage of the basics
The book covers all essential topics related to electric circuits, such as resistive circuits, AC circuits, RLC circuits, op-amps, filters, oscilloscopes, transformers, diodes, transistors, and more. The book explains each topic clearly, concisely, and systematically, with plenty of examples, exercises, and summaries. The book also includes appendices that provide additional information on units, symbols, formulas, trigonometry, complex numbers, phasors, and more.
Clear explanations and applications of fundamental circuit laws and analysis
The book emphasizes on teaching students how to apply fundamental circuit laws and analysis techniques to solve various problems involving basic circuits. The book introduces each law and analysis technique in a simple and intuitive way, and then shows how to use it to solve various types of problems, such as finding voltages, currents, resistances, powers, equivalent circuits, Thevenin's and Norton's equivalents, maximum power transfer, and more. The book also provides many real-world applications and examples of how electric circuits are used in different fields and contexts, such as biomedical engineering, communications, robotics, and renewable energy.
Extensive troubleshooting coverage and practice problems
The book helps students to develop their troubleshooting skills and abilities by providing them with many tips, strategies, and methods for finding and fixing errors and faults in electric circuits. The book also includes a dedicated chapter on troubleshooting techniques that covers topics such as safety precautions, test equipment, circuit analysis tools, fault symptoms, fault location methods, and fault correction methods. The book also provides students with ample opportunities to practice and test their knowledge and skills by offering them a large number of problems at the end of each chapter. The problems range from simple to challenging, and cover both conceptual and numerical aspects. The book also provides answers and solutions to selected problems for students to check their work.
Full-color illustrations and diagrams
The book uses full-color illustrations and diagrams to enhance the visual appeal and clarity of the presentation. The book uses color-coded symbols and labels to distinguish different types of circuit elements, quantities, polarities, directions, phases, and more. The book also uses color-coded graphs and charts to show the relationships between different variables and parameters in a circuit. The book also uses color-coded tables and matrices to organize and display data and information in a structured way. The book also uses color-coded icons and boxes to highlight important concepts, definitions, formulas, examples, applications, tips, cautions, summaries, objectives, key terms, review questions, and more.
How to download the book for free?
If you are interested in downloading the PDF version of this book for free, you have two options: Internet Archive and Library Genesis. These are two websites that provide free access to millions of books, articles, and other digital materials that are otherwise paywalled or not available elsewhere. Here are the steps to download the book from each website:
Option 1: Internet Archive
Internet Archive is a non-profit digital library that preserves and provides access to historical and cultural artifacts in digital form. It has over 20 million books and texts, as well as other media such as audio, video, images, and software. [1^]
Step 1: Visit the website
To access Internet Archive, you need to visit its website at https://archive.org/. You can browse its collections by categories, such as texts, audio, video, etc., or use its search bar to look for specific items.
Step 2: Search for the book title
To find the book you want, you need to type its title in the search bar, and then click on the magnifying glass icon or press Enter. You can also add other keywords or filters to narrow down your search results. For example, you can type "principles of electric circuits floyd 9th edition pdf" to look for the PDF version of the 9th edition of this book.
Step 3: Choose the format and download
Once you find the book you want, you need to click on its title or thumbnail to open its details page. On this page, you can see more information about the book, such as its author, publisher, date, language, pages, etc., as well as preview some pages or listen to some audio clips. You can also see a list of available formats for downloading the book, such as PDF, EPUB, MOBI, etc., on the right side of the page. To download the book in your preferred format, you need to click on its name or icon, and then save it to your device or cloud storage.
Option 2: Library Genesis
Library Genesis (Libgen) is a file-sharing based shadow library website that provides free access to scholarly journal articles, academic and general-interest books, images, comics, audiobooks, and magazines. It has over 5 million books and 77 million articles in its database. [2^]
Step 1: Visit the website
To access Library Genesis, you need to visit one of its mirror websites at http://libgen.rs/, http://libgen.is/, or http://libgen.st/. These are alternative domains that redirect you to the main website. You can browse its collections by categories, such as fiction, comics, magazines, etc., or use its search bar to look for specific items.
Step 2: Search for the book title or ISBN
To find the book you want, you need to type its title or ISBN (International Standard Book Number) in the search bar, and then click on the magnifying glass icon or press Enter. You can also add other keywords or filters to narrow down your search results. For example, you can type "principles of electric circuits floyd" or "9780132383516" to look for this book.
Step 3: Choose the format and download
Once you find the book you want, you need to click on its title or thumbnail to open its details page. On this page, you can see more information about the book, such as its author, publisher, date, language, pages, etc., as well as a list of available formats for downloading the book, such as PDF, EPUB, MOBI, etc. To download the book in your preferred format, you need to click on one of the links under the "Download" column, and then save it to your device or cloud storage.
Conclusion
In this article, we have introduced you to one of the best books on electric circuits: Principles of Electric Circuits by Thomas L. Floyd. We have explained what this book is about, what features it offers, and how you can download it for free from two different sources: Internet Archive and Library Genesis. We hope that this article has been helpful and informative for you, and that you will enjoy reading and learning from this book. If you have any questions or feedback, please feel free to leave a comment below.
FAQs
Q: Is it legal to download books from Internet Archive or Library Genesis?
A: This is a complex and controversial question that depends on many factors, such as your location, the copyright status of the books, the terms of use of the websites, and your personal ethics. Some people argue that downloading books from these websites is a form of internet piracy that violates the rights of authors and publishers, and harms their income and reputation. Others argue that downloading books from these websites is a form of fair use that promotes access to knowledge and culture, and benefits the public interest and education. We are not lawyers or experts on this topic, so we cannot give you a definitive answer or advice. We recommend that you do your own research and make your own informed decision before downloading any books from these websites.
Q: How can I cite this book in my academic work?
A: There are different citation styles that you can use to cite this book in your academic work, such as APA, MLA, Chicago, Harvard, etc. Each style has its own rules and formats for citing books. You can find examples and guides on how to cite this book in different styles online, or use a citation generator tool that can automatically create citations for you. Here is an example of how to cite this book in APA style: Floyd, T. L. (2007). Principles of electric circuits: Conventional current version. Pearson Prentice Hall.
Q: Where can I find more books on electric circuits?
A: There are many other books on electric circuits that you can find online or offline. Some of them are:
Sadiku, M. N. O., & Alexander, C. K. (2019). Fundamentals of electric circuits. McGraw-Hill Education.
Nelms, R. M., & Irwin, J. D. (2018). Basic engineering circuit analysis. John Wiley & Sons.
Svoboda, J., & Dorf, R. C. (2018). Introduction to electric circuits. John Wiley & Sons.
Rizzoni, G., & Nise, N. S. (2016). Principles and applications of electrical engineering. McGraw-Hill Education.
Nilsson, J. W., & Riedel, S. A. (2015). Electric circuits. Pearson.
Q: How can I learn more about electric circuits online?
A: There are many online resources that can help you learn more about electric circuits, such as:
Coursera: This is a platform that offers online courses from top universities and organizations on various topics, including electric circuits. You can enroll in courses such as:
Introduction to Electronics by Georgia Institute of Technology
Fundamentals of Electrical Engineering by Rice University
Circuits and Electronics by Massachusetts Institute of Technology
Khan Academy: This is a website that provides free video lessons and exercises on various subjects, including electric circuits. You can watch videos and practice problems on topics such as:
Basic electrical quantities
Ohm's law and circuits with resistors
Capacitors and inductors
AC circuit analysis
All About Circuits: This is a website that provides free articles, tutorials, projects, and forums on various topics related to electric circuits and electronics. You can read and learn about topics such as:
Voltage, current, resistance, and Ohm's law
Series and parallel circuits
Nodal analysis and mesh analysis
RC and RL circuits
Diodes and transistors
Q: How can I test my knowledge and skills on electric circuits?
A: There are many ways that you can test your knowledge and skills on electric circuits, such as:
Solving problems from books or online resources
Taking quizzes or exams from courses or websites
Building or simulating your own circuits using software or hardware tools
Participating in competitions or challenges related to electric circuits or electronics