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在物理电学部分,讲到了磁与电磁的相关知识,在生活当中,电与磁之间也存在着密切的联系,几乎所有的电器设备都应用到了磁与电磁感应的基本原理,作为一名学生,要学好这一部分知识,必须要理解好四个定则——安培定则,左手定则,右手定则,楞次定律。这四个定则就象一条绳索一样,贯穿整个磁与电磁的知识,将这一部分知识连成一个系统。这里,笔者就这四个定则的学习要点跟大家一起简单探讨。
In the physical electrical part, the related knowledge of magnetism and electromagnetism is mentioned. In life, there is also a close relationship between electricity and magnetism. Almost all electrical appliances are applied to the basic principle of magnetism and electromagnetic induction. As a student To learn this part of knowledge, we must understand the four good rules - Amperds, left-hand rule, right-hand rule, Lenz’s law. These four rules, like a rope, run through the entire magnetic and electromagnetic knowledge, linking this part of the knowledge into a system. Here, the author of these four rules of learning points to discuss with you.