相依電源求戴維寧等效疑問 - 考試
By Hedy
at 2017-08-13T13:17
at 2017-08-13T13:17
Table of Contents
題目與自己解法:https://imgur.com/a/iWcHY
如圖,我是先用節點電壓法求出Vx=7.5
在帶入送V送I的方程式裡
最後算出來的Rth=40
但答案是-10,不知哪邊觀念錯了?
另外想問電阻值可以是負值嗎?好像怪怪的
謝謝
--
如圖,我是先用節點電壓法求出Vx=7.5
在帶入送V送I的方程式裡
最後算出來的Rth=40
但答案是-10,不知哪邊觀念錯了?
另外想問電阻值可以是負值嗎?好像怪怪的
謝謝
--
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考試
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