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Electronic Devices & CircuitsFeedback Amplifiers

For a voltage-series negative-feedback amplifier, output resistance generally?

  • ADecreases
  • BIncreases without limit
  • CBecomes exactly equal to input resistance
  • DIs independent of feedback in every circuit
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Correct Answer: A. Decreases
Explanation: Voltage sampling with negative feedback tends to reduce output resistance, improving voltage-source behavior.
Reference: Standard analog electronics: feedback and output resistance
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