两条形磁铁N极相对而放静止后中间放一小磁针,小磁针的指向?
两条形磁铁N极相对而放静止后中间放一小磁针,小磁针的指向?
物理人气:795 ℃时间:2020-04-22 04:31:23
优质解答
由两条形磁铁磁感线可知,两条形磁铁对小磁针作用力合力为零,而小磁针仍受地磁场影响,所以小磁针N极指向北方
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