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ch17 p4 170102 (17:00)
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電學
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郭俊偉
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May 25, 2013, 11:30:31 AM
5/25/13
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靜電平衡時,電荷只分布在表面。老師的解釋是:在金屬球塞三個正電荷,然後互斥到表面,不過如果是一正一負呢!?不就會相吸嗎?這樣就不會分布到表面了?
討論區板主
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May 28, 2013, 8:04:13 AM
5/28/13
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一正一負相互吸引-->抵消-->成為電中性(不帶電)
郭俊偉於 2013年5月25日星期六UTC+8下午11時30分31秒寫道:
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