If the feedback fraction of an amplifier is 0.01, then voltage gain with negative feedback is approximately________________?
Correct answer: B. 100
- A. 500
- B. 100
- C. 1000
- D. 5000
Explanation
For strong negative feedback, the closed-loop voltage gain is approximately 1/β. Thus, with β = 0.01, the gain is about 1/0.01 = 100, provided the amplifier’s open-loop gain is sufficiently high.
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