论文部分内容阅读
可调内阻电池是专门为物理实验教学而设计的直流电源。它是一个单体铅蓄电池，有一定的容量，电动势比较稳定，它的内电阻比较大且连续可调。在中学物理实验教学中，能用来做下列实验：①研究闭合电路欧姆定律；②用电流表和电压表测定电池的电动势和内电阻；③研究电池组的电
The adjustable internal resistance battery is a DC power supply specially designed for physics experiment teaching. It is a single lead battery, has a certain capacity, electromotive force is relatively stable, its internal resistance is relatively large and continuously adjustable. In the middle school physics experiment teaching, it can be used to do the following experiments: 1 Study the closed circuit Ohm’s law; 2 Use ammeter and voltmeter to measure the battery’s electromotive force and internal resistance; 3 Study the battery pack’s electricity