ETC EngineeringMCQs
Home › Analog Electronics › An amplifier has open-loop gain A=200 and feedback factor beta=0.02. Its closed-loop gain with negative feedback is?
MCQ Practice Question
Analog ElectronicsFeedback Amplifiers

An amplifier has open-loop gain A=200 and feedback factor beta=0.02. Its closed-loop gain with negative feedback is?

  • A20
  • B40
  • C50
  • D200
Report an error
Correct Answer: B. 40
Explanation: Af=A/(1+A beta)=200/(1+4)=40.
Reference: Standard analog electronics: feedback gain calculation
Continue practicing: Analog Electronics MCQs or browse all MCQs.