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Question 1. If voltage feedback (negative) is applied to an amplifier, its output impedance ___________
  1.     Remains the same
  2.     Is increased
  3.     Is decreased
  4.     None of the above
Answer: Option C

Question 2. If the feedback fraction of an amplifier is 0.01, then voltage gain with negative feedback is approximately___________
  1.     500
  2.     100
  3.     1000
  4.     5000
Answer: Option B

Question 3. When current feedback (negative) is applied to an amplifier, its input impedance ___________
  1.     Is decreased
  2.     Is increased
  3.     Remains the same
  4.     None of the above
Answer: Option A

Question 4. Negative feedback is employed in ___________
  1.     Oscillators
  2.     Rectifiers
  3.     Amplifiers
  4.     None of the above
Answer: Option C

Question 5. When voltage feedback (negative) is applied to an amplifier, its input impedance ___________
  1.     Is decreased
  2.     Is increased
  3.     Remains the same
  4.     None of the above
Answer: Option B

Question 6. If the feedback fraction of an amplifier is 0.01, then voltage gain with negative feedback is approximately___________
  1.     500
  2.     100
  3.     1000
  4.     5000
Answer: Option B