通电线圈在磁场中只会转动不会平动吗?既然可以看成一个小磁针,那N级会不会向S极吸过去
通电线圈在磁场中只会转动不会平动吗?既然可以看成一个小磁针,那N级会不会向S极吸过去
物理人气:120 ℃时间:2020-04-27 19:16:56
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会的.
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