用伏特计测量电源电动势和内阻的方法

Study on Measuring Electromotive Force and Internal Resistanceof of Source by Voltmeter

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.将伏特计法和电位差计法测量电源电动势和内阻的结果进行了对比,结果表明,两者的测量结果十分相近.

A new method of measuring electromotive force and internal resistance of source using voltmeter instead of potentiometer was studied. The measurement result of electromotive force and internal resistance of source by voltmeter method was compared with that of potentiometer method. The result showed that the measurement result of voltmeter method was in very good agreement with that of potentiometer method.