[問題] 理化老師如何解釋鳥站在電線上不會被電到
好像聽到大部分的說法都是因為兩端的電壓是零所以不會觸電，
不過一般來說我們在外面看到的電線都是交流電，
但是大多數的老師卻用直流電的說法，大家有這個疑惑嗎?
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※ 編輯: j0958322080 (140.115.223.6), 10/29/2015 13:08:43
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