【摘 要】
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20 0 3年全国高考理科综合(新课程卷)第2 5题是一道关于电磁感应的综合题,题目如下:题目 如图1所示,两根平行的金属导轨固定在同一水平面上,磁感应强度B =0 .5 0T的匀强磁场
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20 0 3年全国高考理科综合(新课程卷)第2 5题是一道关于电磁感应的综合题,题目如下:题目 如图1所示,两根平行的金属导轨固定在同一水平面上,磁感应强度B =0 .5 0T的匀强磁场与图1导轨所在平面垂直,导轨的电阻很小,可忽略不计.导轨间的距离L =0 .2 0m .两根质量均为m =0 .1 0kg
The twenty-fifth year of the National College Entrance Examination for Science (New Curriculum Volume) Question 25 is a comprehensive question on electromagnetic induction. The topics are as follows: Topics As shown in Figure 1, two parallel metal rails are fixed on the same horizontal plane, magnetic induction intensity The uniform magnetic field of B=0.50T is perpendicular to the plane of the guide rail in Fig. 1. The resistance of the guide rail is very small and can be neglected. The distance between guide rails is L = 0.20m. Both masses are m = 0.10kg.
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