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MCQ Practice Question
Electronic Devices & CircuitsBJT Amplifiers

A common-emitter amplifier normally produces an output voltage that is approximately how far out of phase with the input voltage?

  • A0 degrees
  • B90 degrees
  • C180 degrees
  • D360 degrees only
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Correct Answer: C. 180 degrees
Explanation: A common-emitter voltage amplifier is inverting, so its output voltage is approximately 180 degrees out of phase with its input.
Reference: Standard analog electronics: common-emitter amplifier
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