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Following is true for a closed loop op-amp based non-inverting amplifier:


53. Following is true for a closed loop op-amp based non-inverting amplifier:
  • (a) It is a voltage shunt feedback amplifier
  • (b) It has its bandwidth under feedback given by
    Bf = (UGB) · K ; K = Attenuation factor
              Af
    by Af = Closed loop gain
  • (c) It has its input resistance under feedback given by Rif = Ri (1 + AB); Ri = input resistance, A = Open loop gain, B = Feedback gain
  • (d) It is a voltage series feedback amplifier
  • A. (a) and (c) only
  • B. (a) and (b) only
  • C. (b) and (d) only
  • D. (c) and (d) only
Answer: Option D
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