# Oscillators – 74

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74. Determine the output impedance with feedback for a voltage-series feedback having A = –100, R1 = 15 kΩ, R0 = 20 kΩ, and a feedback of β = –0.25.

(a) 0.2 kΩ
(b) 392.16 Ω
(c) 1.82 kΩ
(d) 769.23 Ω

Explanation
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