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高中物理第二册的第四章《电磁感应》中,核心内容是电磁感应现象,其中在电磁感应现象中产生的感应电流的方向判断是一个重难点。用来判定感应电流方向的方法有右手定则,即当导体切割磁感线时,用右手的大姆指指向导体的切割方向,让磁感线垂直穿过手心,则四指所指的方向即为感应电流的方向。
High School Physics Volume II Chapter IV “electromagnetic induction”, the core is the phenomenon of electromagnetic induction, which induced electromagnetic induction phenomenon in the direction of the current judge is a difficult task. Used to determine the direction of induction current method has a right hand rule, that is, when the conductor cutting magnetic lines, with the right thumb pointing to the direction of the conductor cut, so that magnetic lines perpendicular through the palm of your hand, the direction of the four fingers That is the direction of the induced current.