102 台鐵佐級 電子學大意第38題 - 考試

By Queena
at 2013-06-25T14:35
at 2013-06-25T14:35
Table of Contents
請問各位高手,這題要怎麼解?我用等效半電路,Acm=(ro2//ro4) / (1k+20k),因為題目說,ro可怱略,我索性就ro無窮大,但是答案是A,請問我是那裡觀念有問題?
題目如下:
http://miupix.cc/pm-0VA0GH
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題目如下:
http://miupix.cc/pm-0VA0GH
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