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CH17 範例17 的F選項
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電學
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徐維志
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Apr 6, 2013, 3:30:29 AM
4/6/13
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CH17 範例17 的F選項 老師您給的答案是
錯誤 ,
是由於您將 "原帶電體"的"總電量"去做比較 ~
但如果是將"原帶電體"的"多餘電量"去做比較 ,那感應起電後所帶的"多餘電量" 會比原來大是合理的 ,此選項即可選之。
討論區板主
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Apr 9, 2013, 6:38:04 AM
4/9/13
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您好:
不知道您所說的「多餘電量」是指什麼?可否多說明一點?
徐維志於 2013年4月6日星期六UTC+8下午3時30分29秒寫道:
徐維志
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May 3, 2013, 10:52:42 AM
5/3/13
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這裡指的多餘電荷是指帶電體本身所帶有的電荷(如帶+5C的球體),而不是把他在電中性時所擁有的電荷也加進來。
徐維志於 2013年4月6日星期六UTC+8下午3時30分29秒寫道:
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May 10, 2013, 9:59:28 AM
5/10/13
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您好:
電中性時帶電量為0,換句話說,電中性就是正負電荷抵消的狀態,擁有的電荷為0
如果總電量不為0,就不是電中性。
請參考師大物理系的維基
http://www.phy.ntnu.edu.tw/wiki/index.php/%E9%9B%BB%E4%B8%AD%E6%80%A7
關於物體的帶電性質,您可能要再思考一下
徐維志於 2013年5月3日星期五UTC+8下午10時52分42秒寫道:
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