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Analog ElectronicsFrequency Response

The Miller effect in an inverting voltage amplifier effectively makes a feedback capacitance between input and output appear at the input as?

  • AA reduced capacitance only
  • BAn increased effective capacitance
  • CZero capacitance
  • DA pure inductance
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Correct Answer: B. An increased effective capacitance
Explanation: Because the output is amplified and inverted, a capacitance bridging input and output can appear as a much larger effective input capacitance.
Reference: Standard analog electronics: frequency response
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