如图,匀强磁场的磁感应强度为B,方向竖直向下.在磁场中有一个边长为L的正方形刚性金属框.ab边质量为m,其他三边的质量不计.金属框的总电阻为R,cd边上装有固定的水平轴.现在将金属框从水平
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 01:31:09
![如图,匀强磁场的磁感应强度为B,方向竖直向下.在磁场中有一个边长为L的正方形刚性金属框.ab边质量为m,其他三边的质量不计.金属框的总电阻为R,cd边上装有固定的水平轴.现在将金属框从水平](/uploads/image/z/9923353-25-3.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%8C%80%E5%BC%BA%E7%A3%81%E5%9C%BA%E7%9A%84%E7%A3%81%E6%84%9F%E5%BA%94%E5%BC%BA%E5%BA%A6%E4%B8%BAB%2C%E6%96%B9%E5%90%91%E7%AB%96%E7%9B%B4%E5%90%91%E4%B8%8B.%E5%9C%A8%E7%A3%81%E5%9C%BA%E4%B8%AD%E6%9C%89%E4%B8%80%E4%B8%AA%E8%BE%B9%E9%95%BF%E4%B8%BAL%E7%9A%84%E6%AD%A3%E6%96%B9%E5%BD%A2%E5%88%9A%E6%80%A7%E9%87%91%E5%B1%9E%E6%A1%86.ab%E8%BE%B9%E8%B4%A8%E9%87%8F%E4%B8%BAm%2C%E5%85%B6%E4%BB%96%E4%B8%89%E8%BE%B9%E7%9A%84%E8%B4%A8%E9%87%8F%E4%B8%8D%E8%AE%A1.%E9%87%91%E5%B1%9E%E6%A1%86%E7%9A%84%E6%80%BB%E7%94%B5%E9%98%BB%E4%B8%BAR%2Ccd%E8%BE%B9%E4%B8%8A%E8%A3%85%E6%9C%89%E5%9B%BA%E5%AE%9A%E7%9A%84%E6%B0%B4%E5%B9%B3%E8%BD%B4.%E7%8E%B0%E5%9C%A8%E5%B0%86%E9%87%91%E5%B1%9E%E6%A1%86%E4%BB%8E%E6%B0%B4%E5%B9%B3)
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