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铁丝为什么会在高压电下火星四射
更新时间: 2020-10-10 00:00:00  

因为铁丝是金属,在高压电上,铁丝就变成了导体,而铁丝本身具有电阻,高压电上有带着强大的电流,因此电流会因为有电阻的情况下,有很大一部分电能就会转变成铁丝上的热能,因此铁丝就会融化成高温的金属液,所以就会出现火星四射。

关键词: 铁丝 为什么 高压电 火星 四射

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