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Analog ElectronicsFrequency Response

At high frequencies, the gain of a transistor amplifier generally falls mainly because of?

  • AJunction and stray capacitances
  • BCoupling capacitors becoming open circuits only
  • CDC bias becoming exactly zero
  • DLoad resistance becoming infinite
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Correct Answer: A. Junction and stray capacitances
Explanation: Internal junction capacitances, wiring capacitance and related high-frequency effects reduce amplifier gain.
Reference: Standard analog electronics: frequency response
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