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jiao er ding lv tan jiu de san zhong shi yan fang fa de bi jiao
Author(s): 
Pages: 8-8
Year: Issue:  5
Journal: Experiment and Equipment for Primary School

Abstract:  焦耳定律是九年级物理一个非常重要的定律,它揭示了电流通过导体产生的热量与通过导体的电流、导体的电阻及通电时间的数量关系既Q=I2Rt.在实际教学过程中最重要也是最困难的是怎样通过实验探究得出结论,使学生通过课堂学习亲身体验科学规律的发现过程,并进一步理解焦耳定律.焦耳定律的实验探究方法常见且比较典型的有三种.
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