计算动生电动势的若干注记

Notes on the Calculation of the Motional Electromotive Force

文章通过对电动势的讨论 ,指出用“B→ v→ dl→”法计算动生电动势出现负值是不妥的 ,提出了正确的计算方法 ,并用实例作了验证。

In this paper,after the discussion about the electromotive force,the author points out that the occurrence of ε i<0 is inappropriate through the “B→ v→ d l →”calculation method for the motional electromotive force.Also,the correct calculation method is given herein and proved with illustrations.