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磁场是高中物理教学的一个重点和难点,是继电场后又一个抽象的物理学概念.对于这一部分的教学,学生首先面对的是通电导线和磁体之间相互作用的问题.其中通电导线对磁体的作用表现为电流周围存在磁场(可用安培定则判断),磁体处于电流的磁场中,磁体的N极受力方向与该点磁场方向相同,S极受力方向与该点磁场方向相反.磁体对通电导线的作
Magnetic field is a high school physics teaching a focal point and difficulty, is the electric field and then an abstract concept of physics.For this part of the teaching, students first face the problem of the interaction between the conductive wire and the magnet, in which the conductive wire The role of the magnet performance of the magnetic field around the current (available ampere rule to judge), the magnet current in the magnetic field, the N-pole magnetic force direction of the magnetic field direction with the same, S pole force direction and the magnetic field in the opposite direction Acting on the conductor of the magnet