• DocumentCode
    886513
  • Title

    Electromagnetic theory without electric flux

  • Author

    Carpenter, C.J.

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Bristol Univ., UK
  • Volume
    139
  • Issue
    4
  • fYear
    1992
  • fDate
    7/1/1992 12:00:00 AM
  • Firstpage
    189
  • Lastpage
    209
  • Abstract
    Whereas, to the physicist, the electric field in space is completely described by the field vector E, engineers commonly add the flux density, or displacement vector D as a separate quantity, and many regard the SI units as endorsing the need for two different vectors. The author examines the practical implications of a treatment which makes the concept of electric flux unnecessary, by concentrating attention of the charges. The electric field is defined as the potential, phi , and its gradient becomes an auxiliary function, thus reversing their customary roles. The distinction between what is meant by the terms ´electric´ and ´magnetic´ also changes. It is shown that this approach has advantages in electrostatic theory, clarifies the concept of potential datum, and gives an entirely different view of electromagnetic propagation. Energy radiation is described in terms of the behaviour of the charges instead of the fluxes and characterises most electromagnetic devices.
  • Keywords
    electric fields; electromagnetic wave propagation; electromagnetism; EM theory; charges; electric field; electromagnetic propagation; electrostatic theory; gradient; potential;
  • fLanguage
    English
  • Journal_Title
    Science, Measurement and Technology, IEE Proceedings A
  • Publisher
    iet
  • ISSN
    0960-7641
  • Type

    jour

  • Filename
    210719