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15. 如下圖所示疊接(Cascode)放大器,相較於共源(CS)放大器,下列何者有誤? (A)輸入電阻大約相同 (B)電晶體偏流大約相同(C)頻寬大約相同 (D)電壓增益大約相同
問題詳情
15. 如下圖所示疊接(Cascode)放大器,相較於共源(CS)放大器,下列何者有誤?
(A)輸入電阻大約相同
(B)電晶體偏流大約相同
(C)頻寬大約相同
(D)電壓增益大約相同
參考答案
答案:C
難度:
簡單
0.667
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9.已知一等差數列的公差2,前20項和是500,求此等差數列的首項為何?(A) 5(B) 6(C) 10(D) 12
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