关于计算感应电动势的三个公式

Three Formulas for Calculating Induction Electromotive Force

在电磁学和普通物理课程中,计算感应电动势通常有以下三个主要公式ε=-dφ/dt=-d/dt[∫∫(?)];ε=∫(?);β=-∫∫(?).本文指明了这三个公式各自的物理涵义以及它们之间的区别与联系;通过两个实例给出了具体的分析和正确的解答;从而澄清了教学上的一些疑点,并由此深化了对电磁感应定律的理解和应用.

he physical implication, difference and contact for three formulas of calculating induction electromotive force are given. Thereby some doubtful points in teaching are clarified and the understanding and application to the electromagnetic induction law are deepened.