Chapter 27 Electromagnetic Induction and Faradays Law 27-1.Induced Phenomenon(page629-630 1. Electromagnetic induction 闭合电键L断开电鍵」 I变。B变Chapter 27 Electromagnetic Induction and Faraday’s Law 27-1. Induced Phenomenon (page629-630) 1. Electromagnetic induction I变 B变