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恒定电流这章在江苏高考中常会考察一条实验题,测定电源电动势与内阻是其中的高频考点.很多学生在数据处理和误差分析中会碰到困难,甚至花费大量课后时间也不能真正理解.本文将尝试分析学生常见的困惑以及用一条清晰的思路来分析这一类问题.1学生困惑(1)计算法太繁且容易出错,如图1下面分析错在哪里?
Constant current This chapter in the Jiangsu college entrance examination will study an experimental question, determine the power electromotive force and internal resistance is one of the high frequency test points.Many students will encounter difficulties in data processing and error analysis, or even spend a lot of after-school time can not be true Understanding This article will try to analyze students’ common confusion and analyze the problem with a clear idea.1 Students confused (1) Calculation method is too complicated and error-prone, as shown in Figure 1 below the wrong analysis?