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Electronic Devices & CircuitsBJT Amplifiers

Emitter degeneration using an unbypassed emitter resistor in a common-emitter amplifier generally provides?

  • APositive feedback and unstable bias
  • BNegative feedback and improved bias stability
  • CInfinite voltage gain
  • DZero input resistance
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Correct Answer: B. Negative feedback and improved bias stability
Explanation: An emitter resistor develops degenerative negative feedback, helping stabilize the operating point and improving linearity, though it reduces gain.
Reference: Standard analog electronics: emitter degeneration
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