電路學 直流網路 - 考試
By Brianna
at 2013-11-26T08:27
at 2013-11-26T08:27
Table of Contents
各位前輩早安
小弟我在解這題的時候
http://i.imgur.com/U9xJbxA.jpg?1
用了分壓與重疊的方法
我先考慮10V對電路造成的影響
http://i.imgur.com/Zw4F5s0.jpg?1
再考慮3A電流源對電路的影響
http://i.imgur.com/fG2279m.jpg?1
由於10V短路有了以下的解法
http://i.imgur.com/PDGBDDr.jpg?1
得流過2歐姆的電流為2A
2A也是標準答案
再來就是小弟的盲點所在
由於不知哪來的靈感
我決定把諾頓變成戴維寧
圖如下
http://i.imgur.com/Ac0z6YP.jpg?1
算出來的電流竟然是1A
請各位前輩幫幫小弟指出我的盲點
感激不盡!!!!
--
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考試
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