[考題] 100年初考電子學大意第6題:Realtime－2016徵求年菜推薦網路訂購最紅的商家.年菜訂購?台北年菜外送餐廳推薦(年菜)?年菜.今年不想做年菜推薦,網路宅配哪一家好?

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批踢踢實業坊 Examination 板

[考題] 100年初考電子學大意第6題

Nov 15th 2014, 15:23, by wanjuyang

作者wanjuyang (wanju)

看板Examination

標題[考題] 100年初考電子學大意第6題

時間Sat Nov 15 15:23:40 2014

請問 100 年初考電子學大意的第6題 http://imgur.com/58jVXgD

為什麼解答是 (D) 12或-12都有可能而不是 (C) 4 Vi * ( -R2 / R1 ) -1 * ( -40 / 10 ) = 4 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 118.233.124.89 ※ 文章網址: http://www.ptt.cc/bbs/Examination/M.1416036222.A.7F1.html

推 digimaster: 這是正迴授輸出不超出+Vcc和-Vcc 11/15 15:26

推 JJBOY: 要注意opa飽和 11/15 16:00

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