关于条形磁体穿过线圈时线圈中的感应电流的思考简

揭示并分析了当条形磁体的一端进入线圈（单匝）时．线圈中感应电流方向与磁体外侧磁感应强度方向之间的矛盾，同时对条形磁体内外的轴向磁场的大小和变化率的分布也进行了深入地分析，并据此进一步的论述了条形磁体匀速地穿过线圈（单匝）的全过程中线圈中的感应电流的方向和大小的变化规律。

The Thinking of the Induce Electric Current in the Loop for the Strip-shaped Magnet to Drill through the Loop

It opens out and analyzes the contradiction of the direction of the induce electric current in the loop and the direction of the magnetic field of the strip shaped magnet outside the strip--shaped magnet when the one end of strip shaped magnet enter into the loop in the text. In the meantime, also to analysis thoroughly the distribute regulation of the size and variety rate of the magnetic field of the strip-shaped magnet inside and outside of the strip-shaped magnet in the direction of axes, and discuss more the variety regulation of the direction and size of the induce electric current in the loop in the whole processes when strip-shaped magnet drill through the loop evenly.