全面理解和把握教材,深入挖掘教材,利用基本知识、方法和思想,从非静电力的提供和感应电动势的公式两个方面区分感生电动势和动生电动势,理解两种电动势的来由、区别和联系,既提高了学生的理性思维能力和追根问底、格物致知的思维习惯,又加深了对所学知识的深刻理解,明确两类常见的计算。 Fully understand and grasp the textbook, excavate the textbook, make use of the basic knowledge, methods and ideas to distinguish the induced electromotive force and the dynamic electromotive force from the non-electrostatic electricity supply and the formula of the induced electromotive force, and to understand the reasons of the two electromotive forces And contact, not only improve the students’ ability to think of the rational thinking and roots, the knowledge of the habit of thinking, but also deepen their understanding of the knowledge learned, clear two common calculations.