本文考察相对论情况下动生、感生电动势之间的相对性.分析不同参考系总感应电动势数值改变的原因.给出参考系变换下计算总感应电动势的普遍公式.计算了无线长直导线电流外运动矩形及圆形线圈的感应电动势.最后指出运动观者测出的总感应电动势等于静止观者不同时刻在导体不同位置测量电动势的总和.

The relativity between motional and induced electromotive forces is investigated. The reasons are analyzed for the variation in value of total induced electromotive force for different reference frames. A general formula is proposed for calculating the total induced electromotive force under transformation of reference frame. The total induced electromotive forces of rectangular and circular coils moving outside an infinity long wire carries direct current are calculated. The total induced electromotive force measured by the moving observer is equal to the sum of the electromotive forces measured at different positions of the conductor with different times by the stationary observer.