The process of cooperative teaching on physics and chemistry experiment, which measuring the electromotive force and internal resistance using the primary cell produced by fruit, is expatiated.
A new method of measuring electromotive force and internal resistance of source using voltmeter instead of potentiometer was studied.
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。
3
The essay introduces a new method to measure electromotive force of source, That is using oscilloscope comparative law to measure electromotive force and internal resistance of source.