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磁场的叠加应当符合平行四边形定则,如何用实验来验证呢?笔者在实践中找到了一种方法,供大家参考。具体做法如下:(1)如图1所示,将自纸铺放在水平桌面上,将一只小磁针和一块条形磁铁(设磁铁红色端为N极)放在白纸上。描下磁铁和小磁针所在的位置,待小磁针静止后,在白纸上记下小磁针两个针尖投影的位置N_1和S_1;如图2所示,连接N_1和S_1两点的虚线就是磁场方向所在的直线,且磁场的方向由S_1指向N_1;取走小磁针,将磁传感器(如图3所示)的探头,沿虚线方向放在中心位置O点上,测量出该点的磁感应强
The superposition of magnetic field should be consistent with the rules of parallelogram, how to use experiments to verify it? The author found a way in practice for your reference. The specific practices are as follows: (1) As shown in Figure 1, the paper will be laid on a horizontal desktop, a small needle and a bar magnet (set the red end of the magnet for the N) on the white paper. The location of the magnet and the small magnetic needle is described. After the small magnetic needle is still, write down the positions of two needlepoint projections N_1 and S_1 on the white paper. As shown in FIG. 2, the dotted line connecting the two points N_1 and S_1 is the magnetic field Direction of the line, and the direction of the magnetic field from S_1 point N_1; take a small magnetic pin, the magnetic sensor (shown in Figure 3) probe, along the dotted line direction at the center position O point, measured the point of the magnetic induction