108年地特四等電子學第二題求gm的疑問 - 考試
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By Hedda
at 2020-06-29T14:59
at 2020-06-29T14:59
Table of Contents
https://i.imgur.com/ZpncpUR.jpg
第一小題要求解FET的gm值
目前學到的gm求解公式有三個,但這三個公式依題目給的參數帶入求出的值竟都不相同,
如下的照片
https://i.imgur.com/3vtOp8y.jpg
比較公職網上的解答,是使用了第二個公式
https://i.imgur.com/HFz26vy.jpg
這題覺得是不是其實題目設計出來就有問題了,不然怎麼會發生gm算出來會不相同說!!
--
第一小題要求解FET的gm值
目前學到的gm求解公式有三個,但這三個公式依題目給的參數帶入求出的值竟都不相同,
如下的照片
https://i.imgur.com/3vtOp8y.jpg
比較公職網上的解答,是使用了第二個公式
https://i.imgur.com/HFz26vy.jpg
這題覺得是不是其實題目設計出來就有問題了,不然怎麼會發生gm算出來會不相同說!!
--
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考試
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