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

Answer

Answer : (d)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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Oscillators - 68
5555555555 68. Determine the input impedance with feedback for a voltage-series feedback having A = –100, R1 = 15 kΩ, Ro = 20 kΩ, and a feedback of β = –0.25. (a) 110 kΩ (b) 290 kΩ (c) 390 kΩ (d) 510 kΩ
Tags: kω, feedback, oscillators, determine, impedance, voltage-series, β, electronics, engineering
Oscillators - 69
5555555555 69. Determine the voltage gain with feedback for a voltage-series feedback having A = –100, R1 = 15 kΩ, R0 = 20 kΩ, and a feedback of β = –0.25. (a) 3.85 (b) –3.85 (c) –9.09 (d) 9.09
Tags: feedback, kω, oscillators, determine, voltage-series, β, electronics, engineering
Oscillators - 62
555555555562. Which of the following is (are) feedback? (a) Voltage-series (b) Voltage-shunt (c) Current-series (d) All of the above
Tags: oscillators, feedback, voltage-series, electronics, engineering
Oscillators - 67
5555555555 67. What is the ratio of the output impedance with series feedback to that without feedback? (a) 1 (b) 1 + βA (c) βA (d) A
Tags: feedback, oscillators, output, impedance, electronics, engineering
Oscillators - 60
5555555555 60. What is the ratio of the input impedance with series feedback to that without feedback? (a) 1 + βA (b) βA (c) β (d) 1
Tags: feedback, oscillators, impedance, β, electronics, engineering

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