本文介绍了一种新的测量电源电动势的方法，即用示波器测电池的电动势和内电阻。
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.
本文介绍了一种新的测量电源电动势的方法，即用示波器测电池的电动势和内电阻。
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.
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