论文部分内容阅读
这个实验为什么用内阻可调电池尚有信（江苏省宝应县中学，２２５８００）在研究闭合电路的内、外电压和电动势间图１的关系实验中，我们使用的是如图１所示的可调内阻铅酸蓄电池．目的是调节到较大内电阻，是其能够明显地反映出内、外电压的变化，同时也减小了实验误差．...
This experiment is why the internal resistance adjustable battery is still available (Baoying County Middle School, Jiangsu Province, 225800). In the experiment of studying the relationship between the internal and external voltage and the electromotive force of the closed circuit in Figure 1, we use the one shown in Figure 1. Adjustable internal resistance lead-acid batteries. The purpose is to adjust to a larger internal resistance, which can clearly reflect the changes in the internal and external voltage, but also reduces the experimental error. ...