College Physics ›› 2019, Vol. 38 ›› Issue (8): 10-.doi: 10.16854 /j.cnki.1000-0712.180644

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A supplement to the article“Electric field in the cavity of a charged thick ellipsoidal shell”

YU Feng-jun,YANG Yu-peng,WEI Ke-wei,ZHANG Xi-wei   

  1. College of Physics and Electrical Engineering,Anyang Normal University,Anyang,Henan 455000,China
  • Received:2018-11-22 Revised:2019-01-21 Online:2019-08-20 Published:2019-09-12
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Abstract: We calculate the electric potential inside the cavity of a uniformly charged thick ellipsoidal shell. This shell is composed of non-conductor.Its inner and outer surfaces are two coaxial ellipsoidal surfaces with the same eccentricity ratios.The electric potential in the cavity is calculated by using the comparison method and the superposition principle of the electric potential,and the electric potential in the center of the uniformly charged ellipsoid is obtained by the way.

Key words: thick ellipsoidal shell, electric charge, electric potential, superposition principle, comparison method