電子學 100年初等考試 - 考試

By Hedda
at 2013-07-13T13:43
at 2013-07-13T13:43
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
1. 第9題 http://ppt.cc/tY~0 答案:D
這題我用增益頻寬積等於常數來解 3dB增益為原來的根號2倍
1 x 1M = 根號2 x 頻寬 算出來為707K
但答案是500K 請問我哪邊的觀念有問題 ~'~
2. 第22題 http://ppt.cc/dRpw 答案:B
請問這種題目要怎麼分析較好 請高手幫忙解惑~
--
1. 第9題 http://ppt.cc/tY~0 答案:D
這題我用增益頻寬積等於常數來解 3dB增益為原來的根號2倍
1 x 1M = 根號2 x 頻寬 算出來為707K
但答案是500K 請問我哪邊的觀念有問題 ~'~
2. 第22題 http://ppt.cc/dRpw 答案:B
請問這種題目要怎麼分析較好 請高手幫忙解惑~
--
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