8 12-2 Faraday's Law of Induction 电磁感应定律 1. Induction phenomena电磁感应现象 In18318.29 Faraday used the following apparatus(仪器) to find the electromagnetic induction: Galvanometer Iron Switch Battery X Induced EMF§12-2 Faraday’s Law of Induction 电磁感应定律 1. Induction phenomena 电磁感应现象 In 1831.8.29 Faraday used the following apparatus( 仪 器 ） to find the electromagnetic induction: