物理学 8-1电磁感应定律 第五版 电磁感应现象实质 The essence of phenomenon of electromagnetic induction △A照而pE1 当穿过导体回路中磁通量发生变化时,回路中就产 生感应电动势,若回路是闭合的就产生感应电流 When the magnetic flux through the conductor loop changes, there is induction electromotive force generated in the loop, if the loop is closed there is the induced current generated 第八章电磁感应电磁场 4/18第八章 电磁感应 电磁场 物理学 第五版 8-1 电磁感应定律 4/18 当穿过导体回路中磁通量发生变化时,回路中就产 生感应电动势,若回路是闭合的就产生感应电流. 电磁感应现象实质 The essence of phenomenon of electromagnetic induction 0 0     Φ uuuuuur uuuuur Φ  i i R I When the magnetic flux through the conductor loop changes, there is induction electromotive force generated in the loop, if the loop is closed there is the induced current generated