![](https://i.imgur.com/Y38UJkX.jpg)
[問題] 最大功率兩題
![](https://i.imgur.com/Y38UJkX.jpg)
![](https://i.imgur.com/rprOZlj.jpg)
為什麼不能用v平方/4r?
http://i.imgur.com/yBm2d8x.jpg
![](https://i.imgur.com/yBm2d8x.jpg)
![](https://i.imgur.com/rVj7okU.jpg)
這題就可以
以上 感恩
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08/09 15:30, , 1F
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08/09 15:32, , 2F
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08/09 15:33, , 3F
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08/09 15:34, , 4F
08/09 15:34, 4F
※ 編輯: wEImInGLu (223.139.172.202), 08/09/2015 15:34:59
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08/13 23:35, , 29F
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![](https://i.imgur.com/EJbYRVD.jpg)