Question

Which of the following effects in the system is NOT caused by negative feedback?

• A. Reduction in Gain
• B. Increase in bandwidth
• C. Increase in distortion
• D. Reduction in output impedance

Hint:

Negative feedback generally reduces gain, increases bandwidth, and reduces distortion and output impedance in a system.

Answer 1

The Correct Option is C

Negative feedback generally leads to:
- Reduction in Gain: Feedback reduces the overall gain of the system.
- Increase in bandwidth: Feedback allows for a broader range of frequencies where the system is stable.
- Reduction in output impedance: Feedback reduces the output impedance, improving the system's performance.
However, Increase in distortion is not caused by negative feedback. In fact, negative feedback typically reduces distortion in a system. Thus, the correct answer is Increase in distortion.