基本電學練習題 - 考試
By Delia
at 2013-03-23T20:46
at 2013-03-23T20:46
Table of Contents
30 a 10 b 4 c
─~~─┬─~~─┬─~~─┐
│ │ │ │
+ │ │ │ │+
E ==20 ==5 E 20V
- │ │ │ │-
│ │ │ │
─~~─┘ d└─~~─┘
120V 10歐姆 1歐姆
http://0rz.tw/CleX3
(1) 20歐姆電阻所消耗功率
(2) b點電位
(3) c點電位
(4) d點電位
(5) b.d點電位差
請問基本的觀念
我不懂得是 1.為什麼b點的電位跟a點的電位一樣(V=60)
2.解答是先算左迴圈 在推右迴圈每個點的電位
反之亦可?? 從右迴圈推左迴圈?? 感覺好像不行
3.電流到底怎麼跑?
很好奇 電位a b 假如一樣 代表??? ab間是沒有電的嗎?
左迴圈電流從E開始 流到a時 電只有往下跑?? 可是a右邊也有線路
電流應該也會跑過去吧!?
不好意思 非本科 所以沒什麼基本概念
謝謝指教
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