基本電學 問題 - 考試
By Doris
at 2014-04-14T17:23
at 2014-04-14T17:23
Table of Contents
[考題] 國考歷屆考題與考題觀念討論(書裡看到的選這個)請附上想法、出處
問題：https://docs.google.com/file/d/0B-duXLLk4F0mMUI3X1Faa3V0dUU/edit，
求電阻R及R的最大移轉功率P
解答：https://docs.google.com/file/d/0B-duXLLk4F0mUDNwYWx6N0UzcGM/edit，
R=40/7; P=1/280W
想法：R與10R接地，所以接起來後2個電阻為並聯(還是我想法錯了@@?)，
不能理解的是為什麼(4V、40R)跟(-1V、20R)也和上述2個電組並聯？
有高手能幫忙解決疑問嗎？謝謝！
--
問題：https://docs.google.com/file/d/0B-duXLLk4F0mMUI3X1Faa3V0dUU/edit，
求電阻R及R的最大移轉功率P
解答：https://docs.google.com/file/d/0B-duXLLk4F0mUDNwYWx6N0UzcGM/edit，
R=40/7; P=1/280W
想法：R與10R接地，所以接起來後2個電阻為並聯(還是我想法錯了@@?)，
不能理解的是為什麼(4V、40R)跟(-1V、20R)也和上述2個電組並聯？
有高手能幫忙解決疑問嗎？謝謝！
--
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考試
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