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36. 下圖所示 MOS 放大器,當電晶體Q2壞掉,變成斷路。放大器電壓增益如何變化? (A)不變 (B)變小後變大 (C)變大 (D)變小
問題詳情
36. 下圖所示 MOS 放大器,當電晶體Q2壞掉,變成斷路。放大器電壓增益如何變化?
(A)不變
(B)變小後變大
(C)變大
(D)變小
參考答案
答案:D
難度:
計算中
-1
書單:
沒有書單,新增
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55. Which one of the following molecules is NOT the second messenger in thephosphoinositol signaling
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14.在 500 匝之線圈中,若磁通Φ在 0.1 秒內由 0.02 韋伯增加到 0.05 韋伯,則該線圈之感應電勢為何?(A) 25V (B) 50V (C) 100V (D) 150V
資訊推薦
1.下列何者不是運動傷害防護員的職責:(A)確保運動員的傷病有完整的評估及適當的治療(B)協同運動醫療團隊進行運動傷害後的復健(C)急救與治療處理(D)規劃與執行運動傷害後的體能訓練
Questions 176~180 refer to the following email and information. Subject: Request for Collaboration w
15.如(圖 3)所示導體 表示電流流出紙面,則導體之運動方向為何? (A)向左 (B)向右 (C)向上 (D)向下
2.電阻若為120Ω±5%;則其色碼順序為:(A)棕紅棕金 (B)黑棕黑銀 (C)黑棕黑金 (D)棕紅棕銀
3.有甲、乙、丙、丁四種材料,其電阻係數分別為9✕10−8, 6✕10−8, 3✕10−8, 2✕10−8Ω-m,何者最適合做導體材料?(A)甲 (B)乙 (C)丙 (D)丁
4.甲乙兩導體為相同材料製成,甲導體的長度為乙導體的長度的1/4,但甲導體的線徑為乙導體的2倍,若已知甲導體的電阻值為10Ω,則乙導體的電阻為多少?(A) 40Ω (B)80Ω (C) 60Ω (D)
5.兩點的電位差VAB之值為正時,下列敘述何者錯誤? (A) VBA =-VAB (B)表示A點的電位高於B點的電位(C)電流由A點流向B點 (D)若有一正電荷自B點移至A點,所作的功為負值
6.重疊定理分析直流迴路,每次單獨使用一個電源,其他的電源應如何處理?(A)電壓源短路,電流源斷路 (B)電壓源斷路,電流源短路(C)電壓源及電流源均短路 (D)電壓源及電流源均斷路
7.兩個電阻R1及R2的電阻值比為2:4,若將其串聯接於電源,已知R1上的電壓為10V,R2上的消耗功率為25W,求R2=?(A) 5 (B) 16 (C) 32 (D) 64
8.如【圖1】所示,戴維寧等效電阻RTh及等效電壓VTh分別為: (A) 6Ω,4V(B) 6Ω,-4V(C) 7Ω,4V(D) 6Ω,-12V
56. Which of the following DNA type is left-handed forms?(A) A-DNA (B) B-DNA (C) Z-DNA (D) None of a
57. Which of the following enzyme is contained in mitochondria?(A) Succinate dehydrogenase (B) Fumar
58. Which of the following ion plays a key role in the enzymatic activity ofribulose-1,5-bisphosphat
59. What is the main place for the fatty acid β-oxidation in cells?(A) Cytosol (B) Mitochondria (C)
60. Ketone bodies are water-soluble molecules that contain the ketone groupsproduced from fatty acid
61. What is the net gain of ATP molecules production in the lactic fermentation withthe homofermenta
62. Which of the following molecules is the final electron acceptor in the electrontransport chain?(
63. Which of the following metabolic reactions occurs in the mitochondrial matrix?(A) Citric acid cy
64. Which of the following amino acid is achiral?(A) Proline (B) Leucine (C) Glycine (D) Alanine
65. Which of the following is NOT basic amino acid?(A) Histidine (B) Leucine (C) Arginine (D) Lysine
66. Which of the following is NOT glucogenic amino acid?(A) Asparagine (B) Methionine (C) Leucine (D
67. The intermediate compound common for aerobic and anaerobic respiration is(A) Succinic acid (B) A
68. Which of the following is the common intermediate compound for carbohydrate,lipid and amino acid
69. Which of the following compound is involved in urea cycle?(A) Aspartate (B) Ornithine (C) Fumara
70. With more of which base-pair content will a DNA melting temperature (Tm) behigher?(A) GC (B) AT