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.
讨论了用伏特计代替电位差计测电源的电动势和内阻的新方法。
A new method of measuring electromotive force and internal resistance of source using voltmeter instead of potentiometer was studied.
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