论文部分内容阅读
在闭合电路欧姆定律这一节的教学中,很多学生对电源电动势、内电压及内电阻的理解会产生疑惑:电源中既然非静电力做功使电势升高,为什么内电路上又有电势的降落?本文对这种疑惑用物理电场结合化学电池模型的方法做出合理解释。
In the teaching of Ohm’s law of closed circuit, many students have doubts about the understanding of the power electromotive force, the internal voltage and the internal resistance: why the internal circuit has the potential drop since the non-electrostatic power in the power supply increases the potential This article makes a reasonable explanation for this kind of doubt by using the method of physical electric field combined with chemical battery model.