Question

Negative feedback does not improve

• A. Stability of voltage gain
• B. Nonlinear distortion in later stages
• C. Output offset voltage
• D. Power bandwidth

Answer 1

The correct option is D Power bandwidth

Negative feedback improves gain stability and reduces noise too, since a part of the noise along with the signal is fedback
It reduces the output offset voltage too
The power bandwidth is directly proportional to slew rate and inversely proportional to the peak output voltage . Negative feedback increases the slew rate and hence decreases the power bandwidth. Thus powerbandwidth is not improved