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Gaokao Physics Practice Question

关于通电直导线在匀强磁场中所受的安培力, 下列说法正确的是

  1. A.安培力的方向可以不垂直于直导线
  2. B.安培力的方向总是垂直于磁场的方向
  3. C.安培力的大小与通电导线和磁场方向的夹角无关
  4. D.将直导线从中折成直角, 安培力的大小一定变为原来的一半

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