在匀强磁场中放一电阻不计的平行金属导轨,导轨跟大线圈M相接,如图4所示.导轨上放一根导 在匀强磁场中放一电阻不计的平行金属导轨,导轨跟大线圈M相接,如图4所示.导轨上放一根导线ab,
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![在匀强磁场中放一电阻不计的平行金属导轨,导轨跟大线圈M相接,如图4所示.导轨上放一根导 在匀强磁场中放一电阻不计的平行金属导轨,导轨跟大线圈M相接,如图4所示.导轨上放一根导线ab,](/uploads/image/z/4941065-65-5.jpg?t=%E5%9C%A8%E5%8C%80%E5%BC%BA%E7%A3%81%E5%9C%BA%E4%B8%AD%E6%94%BE%E4%B8%80%E7%94%B5%E9%98%BB%E4%B8%8D%E8%AE%A1%E7%9A%84%E5%B9%B3%E8%A1%8C%E9%87%91%E5%B1%9E%E5%AF%BC%E8%BD%A8%2C%E5%AF%BC%E8%BD%A8%E8%B7%9F%E5%A4%A7%E7%BA%BF%E5%9C%88M%E7%9B%B8%E6%8E%A5%2C%E5%A6%82%E5%9B%BE4%E6%89%80%E7%A4%BA%EF%BC%8E%E5%AF%BC%E8%BD%A8%E4%B8%8A%E6%94%BE%E4%B8%80%E6%A0%B9%E5%AF%BC+%E5%9C%A8%E5%8C%80%E5%BC%BA%E7%A3%81%E5%9C%BA%E4%B8%AD%E6%94%BE%E4%B8%80%E7%94%B5%E9%98%BB%E4%B8%8D%E8%AE%A1%E7%9A%84%E5%B9%B3%E8%A1%8C%E9%87%91%E5%B1%9E%E5%AF%BC%E8%BD%A8%2C%E5%AF%BC%E8%BD%A8%E8%B7%9F%E5%A4%A7%E7%BA%BF%E5%9C%88M%E7%9B%B8%E6%8E%A5%2C%E5%A6%82%E5%9B%BE4%E6%89%80%E7%A4%BA%EF%BC%8E%E5%AF%BC%E8%BD%A8%E4%B8%8A%E6%94%BE%E4%B8%80%E6%A0%B9%E5%AF%BC%E7%BA%BFab%2C)
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