36.如右圖所示之RC低通濾波器,若C=10μF,R=5kΩ;求–3dB截止頻率fc約為何?[初等考113]
(A)3.18Hz
(B)4.47Hz
(C)20Hz
(D)31.8Hz
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統計: A(1), B(0), C(0), D(0), E(0) #3840638
統計: A(1), B(0), C(0), D(0), E(0) #3840638