7 如圖所示為一主動低通電路，R1 = 2 kΩ、R2 = 2 kΩ、R3 = 12 kΩ、C1 = 0.01μF，則高頻截止頻率約為： (A) 2 kHz(B) 4 kHz(C)8 kHz(D) 1

問題詳情

7 如圖所示為一主動低通電路，R1 = 2 kΩ、R2 = 2 kΩ、R3 = 12 kΩ、C1 = 0.01μF，則高頻截止頻率約為：

(A) 2 kHz
(B) 4 kHz
(C)8 kHz
(D) 16 kHz

答案：C
難度：簡單0.754386
統計：A(1),B(2),C(43),D(5),E(0)