For a BJT amplifier, the Miller effect can make a feedback capacitance between collector and base appear at the input as?

  • AA larger effective capacitance
  • BExactly zero capacitance
  • CA pure inductance
  • DA negative resistance only
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Correct Answer: A. A larger effective capacitance
Explanation: Voltage gain across a feedback capacitance can multiply its apparent input effect, increasing effective input capacitance and reducing high-frequency bandwidth.
Reference: Standard analog electronics: Miller effect