库仑定律在家测不了?真相比你想的更尴尬
原创
你有没有试过在家搭个简易实验台去验证库仑定律?结果大概率是:电荷量摸不清、力太小测不了、误差大到自己都不信。这篇博客把问题拆得很透——静电荷在空气中泄漏极快,微弱的电力信号容易被杂散电荷淹没,家用器材根本没有隔离能力。说白了,这不是你不认真的问题,而是这个实验从物理上就几乎不可能在客厅完成。库仑定律作为电磁学的基石,它的验证门槛比教科书暗示的要高得多。
原文:Coulomb's law remains tricky to test at home · 来源:Hacker News
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