[問題] 電路學(最大功率轉移)
本魯有補張鼎老師的電路學
但是張鼎老師的電路學和學校教的
兩個算出來會差二分之一
想請各位幫忙釐清一下觀念
題目如下:
http://imgur.com/IXVGmjw
![](https://i.imgur.com/IXVGmjw.jpg)
本魯的作法如下:
http://imgur.com/R05hcai
![](https://i.imgur.com/R05hcai.jpg)
但張鼎老師的作法是:
http://imgur.com/lzi7eiY
![](https://i.imgur.com/lzi7eiY.jpg)
是我答案的兩倍
其他功率題目也有這個問題
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