Amplifiers With Negative Feedback MCQs with answers Page - 2

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Admin • 833K Points
Coach

Q. When voltage feedback (negative) is applied to an amplifier, its input impedance _________.

  • (A) Is decreased
  • (B) Is increased
  • (C) Remains the same
  • (D) None of the above

A

Admin • 833K Points
Coach

Q. when negative voltage feedback is applied to an amplifier, its voltage gain _________.

  • (A) Is increased
  • (B) Is reduced
  • (C) Remains the same
  • (D) None of the above

A

Admin • 833K Points
Coach

Q. When current feedback (negative) is applied to an amplifier, its output impedance _________

  • (A) Is increased
  • (B) Is decreased
  • (C) Remains the same
  • (D) None of the above

A

Admin • 833K Points
Coach

Q. When a negative voltage feedback is applied to an amplifier, its bandwidth _________

  • (A) Is increased
  • (B) Is decreased
  • (C) Remains the same
  • (D) Insufficient data

A

Admin • 833K Points
Coach

Q. Then current feedback (negative) is applied to an amplifier, its input impedance _________.

  • (A) Is decreased
  • (B) Is increased
  • (C) Remains the same
  • (D) None of the above

A

Admin • 833K Points
Coach

Q. The voltage gain of an emitter follower is ______

  • (A) Much less than 1
  • (B) Approximately equal to 1
  • (C) Greater than 1
  • (D) None of the above

A

Admin • 833K Points
Coach

Q. The value of negative feedback fraction is always _____

  • (A) Less than 1
  • (B) More than 1
  • (C) Equal to 1
  • (D) None of the above

A

Admin • 833K Points
Coach

Q. The output impedance of an emitter follower is _________

  • (A) High
  • (B) Very high
  • (C) Almost zero
  • (D) Low

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