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测定电源电动势和内阻是电学中的重要实验,是高考考查的重点和热点实验。通过对此实验模型的研究,让学生掌握最基本的模型原理,应对各种新颖的高考题;同时,通过对不同类型和例题的分析,探究学生对此模型的理解和应用,并期望学生能有针对性地对各种实验情境进行模型的构建,在构建的过程中,不断地进行思维,提升对知识的理解和领悟,从而避免在此实验的考查中丢分。
Determination of power emf and internal resistance is an important experiment in electrical, college entrance examination is the focus and hot experiment. Through the study of this experimental model, students can grasp the most basic model principles to deal with a variety of novel college entrance examination questions. At the same time, through the analysis of different types and examples, students’ understanding and application of this model are explored. Students are expected to Targeted to a variety of experimental scenarios for the construction of the model, in the process of building, continuous thinking, enhance understanding and understanding of knowledge, thus avoiding the test of this test points.