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16. 有一負回授放大器,其閉迴路增益 Af = 100,開迴路增益 A = 104 ,試求回授因子 β 為何? (A) 0.0099 (B) 0.099 (C) 0.99 (D) 9.9
問題詳情
16. 有一負回授放大器,其閉迴路增益 Af = 100,開迴路增益 A = 104 ,試求回授因子 β 為何?
(A) 0.0099
(B) 0.099
(C) 0.99
(D) 9.9
參考答案
答案:A
統計:A:3,B:2,C:1,D:0,E:0
難度:計算中
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17. 有一回授放大器,其開迴路增益 A = 106 ,開迴路頻寬 1 kHz,閉迴路增益 Af = 102 ,試求閉迴路頻寬為何? (A) 102 kHz (B) 103 kHz (C) 104
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