物理学 8-1电磁感应定律 第五版 法拉第电磁感应定律 (Faradays law ofelectromagnetic Induction) 当穿过闭合回路所围面积的磁通量发生变 化时,回路中会产生感应电动势,感应电动势 大小正比于磁通量对时间变化率,感应电动势 的方向反抗引起感应电动势的磁通量变化 When the magnetic flux through the area of closed loop change, there is inductive electromotive force generated in the loop, induced electromotive force is proportional to the time rate of change of magnetic flux, the direction ofinduction electromotive force tends to oppose the magnetic flux changes caused induced electromotive force. 第八章电磁感应电磁场 5/18第八章 电磁感应 电磁场 物理学 第五版 8-1 电磁感应定律 5/18 二 法拉第电磁感应定律 (Faraday, s law of electromagnetic Induction) 当穿过闭合回路所围面积的磁通量发生变 化时，回路中会产生感应电动势，感应电动势 大小正比于磁通量对时间变化率，感应电动势 的方向反抗引起感应电动势的磁通量变化. When the magnetic flux through the area of closed loop change, there is inductive electromotive force generated in the loop, induced electromotive force is proportional to the time rate of change of magnetic flux, the direction of induction electromotive force tends to oppose the magnetic flux changes caused induced electromotive force