法拉第电磁感应定律在电路分析中的应用
APPLICATION OF FARADAY'S LAW OF ELECTROMAGNETIC INDUCTION IN CIRCUIT ANALYSIS
尹健庄,郭状,桂堤,肖文波
摘要(Abstract):
变化磁场产生的电场不是保守场,非保守场中电压不能很好地定义,此时使用基尔霍夫电压定律可能无法正确揭示电路中的物理过程。而利用法拉第电磁感应定律则可避免在非保守场中定义电压的问题,处理变化磁场中的电路问题更具优势。通过计算电场的环路积分,运用法拉第电磁感应定律可在得出正确结果的同时展现出电路内部清晰的物理图像,并能澄清一些广泛存在的误解。若教学中能涉及电磁感应定律的此类运用,则可让学生对电路和电磁学基本定律的认识更加深入。
关键词(KeyWords): 电磁感应;感生电场;基尔霍夫电压定律;电势;电势差
基金项目(Foundation): 南昌航空大学国家级大学物理实验示范中心开放基金(SY2003;SY1903);南昌航空大学校级教改课题(JY22077);; 江西省教改重点项目“创新创业下大学物理课程教学的改革研究”(JXJG-19-8-4);; 教育部高等学校大学物理教学指导委员会课题“以新工科需求为导向的《大学物理》资源库建设与推广项目”(E-SXWLHXLX20202605)
作者(Author): 尹健庄,郭状,桂堤,肖文波
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