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Engineering LibreTexts

Book: Electromagnetics I (Ellingson)

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  • This book is intended to serve as a primary textbook for a one-semester introductory course in undergraduate engineering electromagnetics, including the following topics: electric and magnetic fields; electromagnetic properties of materials; electromagnetic waves; and devices that operate according to associated electromagnetic principles including resistors, capacitors, inductors, transformers, generators, and transmission lines. This book employs the “transmission lines first” approach, in which transmission lines are introduced using a lumped-element equivalent circuit model for a differential length of transmission line, leading to one-dimensional wave equations for voltage and current.1 This is sufficient to address transmission line concepts, including characteristic impedance, input impedance of terminated transmission lines, and impedance matching techniques. Attention then turns to electrostatics, magnetostatics, time-varying fields, and waves, in that order.

    Acknowledgments. Here’s a list of talented and helpful people who contributed to this book:
    The staff of VT Publishing, University Libraries, Virginia Tech:
    Editor: Anita Walz
    Advisors: Peter Potter, Corinne Guimont
    Cover: Robert Browder, Anita Walz
    Other VT contributors:
    Assessment: Tiffany Shoop, Anita Walz
    Accessibility: Christa Miller
    Virginia Tech students:
    Alt text writer: Stephanie Edwards
    Figure designer: Michaela Goldammer
    Figure designer: Kruthika Kikkeri
    Figure designer: Youmin Qin
    Melissa Ashman, Kwantlen Polytechnic University
    External reviewers:
    Samir El-Ghazaly, University of Arkansas
    Stephen Gedney, University of Colorado Denver
    Randy Haupt, Colorado School of Mines
    Karl Warnick, Brigham Young University

    Also, thanks are due to the students of the Spring 2018 and Summer 2018 sections of ECE3105 at Virginia Tech who used the beta version of this book and provided useful feedback. Thanks also to Justin Yonker, instructor of the Summer 2018 section.