This paper provides a:new universal method-the Right Hand Cause-Effect Rule forjudging the direction of ampere force, motional electromotive force and motional current.
本文对安培力、动生电动势、动生电流等的方向，提出了新的统一的判定方法——右手因果定则。
A new method of measuring the electromotive force of reversible cells using MOS intergrated circuit is presented.
本文介绍一种应用MOS集成电路测量可逆电池电动势的新方法。
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。
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