The amount of feedback applied to an amplifier reduces the gain by a factor of 10. The bandwidth
- A. Decreases by factor of 10
- B. Increases by a factor of 10
- C. Remains the same
- D. None of the above
Answer: B. Increases by a factor of 10
Explanation: Negative feedback preserves the gain-bandwidth product (GBW = Af·BWf = A·BW). If closed-loop gain Af decreases by a factor of 10, the bandwidth increases by a factor of 10.