依托实验现象深度研究自感问题
Deep Research on Self-Inductance Issues Based on Experimental Phenomena

本文利用日光灯电感镇流器大自感系数和普通小自感线圈的特点，设计了教学体验型实验，根据实验现象对自感问题进行了比较深入的研究，给出了实验电路在线性模型下的通电过程及断电过程的自感电动势和自感电流表达式。分析了线性理论结果与实验现象不完全吻合的原因，同时，纠正了有关文献对自感电流和自感电动势的错误认识。
In this paper, using the characteristics of high self-inductance coefficient of fluorescent lamp inductor ballasts and ordinary small self-inductance coils, a teaching experience experiment is designed. Based on the experimental phenomena, a more in-depth study is conducted on the self-inductance problem, and expressions for the self-induced electromotive force and self-induced current of the experimental circuit during the electrification and power-off processes in a linear model are provided. The reasons for the incomplete agreement between the results of linear theory and experimental phenomena are analyzed, and at the same time, the erroneous understanding of self-induced current and self-induced electromotive force in relevant literature is corrected.