大学物理 ›› 2025, Vol. 44 ›› Issue (6): 26-.doi: 10.16854/j.cnki.1000-0712.240559

• 教学讨论 • 上一篇    下一篇

大学物理中静电体系平衡稳定性的教学探讨

康天睿,章梅   

  1. 北京师范大学物理与天文学院,北京100875
  • 收稿日期:2024-11-29 修回日期:2024-12-13 出版日期:2025-07-15 发布日期:2025-08-09
  • 作者简介:康天睿(1998—),男,辽宁沈阳人,北京师范大学物理与天文学院在读硕士研究生.

Discussion on the teaching of equilibrium stability of electrostatic #br# system in university physics#br#

KANG  Tian-rui, ZHANG Mei   

  1. School of Physics and Astronomy, Beijing Normal University, Beijing 100875, China
  • Received:2024-11-29 Revised:2024-12-13 Online:2025-07-15 Published:2025-08-09

摘要: 利用平衡稳定性判据和静电场的高斯定理证明了仅受静电力作用的点电荷不可能处于稳定平衡状态,分析了其适用条件,并给出了相应的教学建议.

关键词: 静电场, 平衡稳定性, 高斯定理

Abstract: By applying the condition for stability of equilibrium and Gausss law, it is proved that any point charge cannot be held in stable equilibrium by electrostatic forces alone; the scope of application is emphasized, and corresponding teaching suggestions are put forward. 

Key words: electrostatic field, equilibrium stability, Gausss law