Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Electromagnetic Fields of a Moving Electric Dipole

E. A. Power and T. Thirunamachandran
Proceedings: Mathematical, Physical and Engineering Sciences
Vol. 457, No. 2015 (Nov. 8, 2001), pp. 2757-2778
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/3067456
Page Count: 22
  • Read Online (Free)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Electromagnetic Fields of a Moving Electric Dipole
Preview not available

Abstract

The classical electric and magnetic fields of a moving electric dipole with a general trajectory are obtained in terms of the dipole moment and the position vector, their time derivatives and those of higher order. In contrast to the fields of a moving charge, which depend only on velocity and acceleration at retarded time, the dipole fields also depend on the rate of change of acceleration at retarded time. Another novel property is that for a non-oscillating source such as a permanent dipole, the fields have radiative character. The fields are found first by direct integration of Maxwell's equations with the dipole source partitioned into polarization and Röntgen currents. The resulting expressions are analogous to those found by Feynman for an arbitrary moving charge. These dipole fields are also obtained in forms similar to the Lienard-Wiechert fields for a moving charge. These are grouped in terms of the power law of distance of the field point from the source. Finally, the fields of the dipole with some specific trajectories such as linear and circular motions are discussed.

Page Thumbnails

  • Thumbnail: Page 
2757
    2757
  • Thumbnail: Page 
2758
    2758
  • Thumbnail: Page 
2759
    2759
  • Thumbnail: Page 
2760
    2760
  • Thumbnail: Page 
2761
    2761
  • Thumbnail: Page 
2762
    2762
  • Thumbnail: Page 
2763
    2763
  • Thumbnail: Page 
2764
    2764
  • Thumbnail: Page 
2765
    2765
  • Thumbnail: Page 
2766
    2766
  • Thumbnail: Page 
2767
    2767
  • Thumbnail: Page 
2768
    2768
  • Thumbnail: Page 
2769
    2769
  • Thumbnail: Page 
2770
    2770
  • Thumbnail: Page 
2771
    2771
  • Thumbnail: Page 
2772
    2772
  • Thumbnail: Page 
2773
    2773
  • Thumbnail: Page 
2774
    2774
  • Thumbnail: Page 
2775
    2775
  • Thumbnail: Page 
2776
    2776
  • Thumbnail: Page 
2777
    2777
  • Thumbnail: Page 
2778
    2778