Physics · Amplifiers
What are the input and output impedances of a voltage-series feedback amplifier, given that the input impedance without feedback Ri = 5 kΩ, output impedance without feedback Ro = 10 kΩ, and the feedback factor (loop gain) Aβ = 19?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1100 kΩ, 0.5 kΩ✓
- 20.25 kΩ, 200 kΩ
- 3100 kΩ, 200 kΩ
- 40.25 kΩ, 0.5 kΩ
Correct answer
100 kΩ, 0.5 kΩ
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