用自组电位差计测干电池电动势和内阻

Installing a potentiometer to measure the voltage and the internal resistance of the dry battery

根据电压补偿原理 ,设计了自组电位差计的几种实验电路 ,用于测量干电池的电动势和内阻 .

According to the voltage compensation method, several experiment circuits of potentiometer are designed to measure the voltage and the internal resistance of the dry battery.