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duo gong neng jing dian shi yan xiang de zhi zuo yu shi yong xiao guo fen xi
Author(s): 
Pages: 41-42
Year: Issue:  4
Journal: Experiment and Equipment for Primary School

Abstract: 1 问题的提出 1.1 静电学实验不成功的原因分析 中学物理教学中,静电学的实验是一个不易做成功的实验.有时教师在实验室进行实际操作时,效果很好,可是到了教室做实验时,却失败了.这是因为静电学实验要求在空气比较干燥的环境中进行,空气相对湿度较高,在静电学仪器绝缘体上就会形成一层水膜,这层水膜会把仪器所带的电荷导走,导致静电学实验失败.
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