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地球有磁场为什么不吸铁
更新时间: 2020-11-10 00:00:00  

地球有磁场不吸铁的主要原因是,地球的磁场确实很弱,无法把铁制品吸起来,但是宇宙射线等里面带有大量的带电粒子,在磁场的作用下发生偏转,最后移到极点,在两极形成比较强大的磁场,这个也就是指南针的应用原理。

关键词: 地球 磁场 为什么

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