Xuan Li,Lichen Li,Zhaoyang Peng

Capacitors have been a popular topic in college entrance examinations in recent years, with dynamic problems of capacitors being a crucial part of this chapter. Students often encounter difficulties when solving related problems of capacitor dynamic analysis using middle school methods, failing to appreciate the advantages of a higher perspective and thus unable to effectively enhance their enthusiasm for "learning" and "application". This paper attempts to introduce the conclusion from college physics that the electric field strength between parallel plate capacitors is related to the charge surface density on the plates, and appropriately simplify its derivation process, thereby changing the approach to solving dynamic change problems of parallel plate capacitors to achieve a more efficient outcome.

Parallel Plate Capacitors; Dynamic Problems; Uniform Electric Field

[1] Wang Xiaojun, Zhang Juan, Wang Zhuozhang. Analysis of the dynamic problems of parallel plate capacitors [J]. Middle School Physics Teaching Reference, 2018, 47(10): 33-34. [2] Tang Bojing. Logical analysis of related problems of parallel plate capacitors [J]. Physics Teaching, 2023, 45(02):32-34. [3] Cheng Shouzhu, Jiang Zhiyong, editor. General Physics, Part 1, 7th Edition [M]. Beijing: Higher Education Press, 2016.05.

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