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ce liang dian yuan de dian dong shi he nei zu de fang fa ji wu cha fen xi
Author(s): 
Pages: 28-31
Year: Issue:  4
Journal: Experiment and Equipment for Primary School

Abstract: 在电学实验中,用伏安法测量电阻、电源的电动势和内电阻等实验中,如何选择电学实验器材,设计测量电路,合理规范控制电路,使实验操作方便,实验误差较小,是中学物理实验的难点.电学实验具有灵活性和多样性,但基本的原则是:操作方便简单,原理合理完善,结论可靠精确,仪器安全低碳等各方面的综合考虑.本文简述测量电源电动势和内阻的方法及系统误差分析.
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