法拉第电磁感应定律是高中物理教学的重点,但由于高中阶段没有要求通过定量实验来研究。根据教材前后内容的承接关系及学生的认知能力和特点,完全可以通过实验定量探究。经过摸索,作者开发了一套教具,实现了对E=N(Δφ)/(Δt)的定量探究。一、实验器材数字示波器,线圈,圆柱形磁铁组(用速干水泥固定的不同数量的磁铁),导线,塑料圆筒(上面标有刻度),塑料支架(如图1所示)。二、实验原理与主要过程1.实验原理的证明如果法拉第电磁感应定律成立,应有 Faraday’s Law of Electromagnetic Induction is the focus of high school physics teaching, but due to the fact that high school does not require quantitative research. According to the context of teaching materials to undertake the relationship and the students’ cognitive ability and characteristics, can be quantitatively explored through experiments. After exploration, the author developed a set of teaching aids, to achieve a quantitative study of E = N (Δφ) / (Δt). First, the experimental equipment Digital oscilloscopes, coils, cylindrical magnet group (with a quick dry cement fixed a different number of magnets), wire, plastic cylinder (marked with a scale above), plastic bracket (shown in Figure 1). Second, the experimental principle and the main process 1. Proof of experimental principle Faraday’s law of electromagnetic induction, should have