Which one is increased when a negative feedback voltage is applied to an amplifier?

Which one is increased when a negative feedback voltage is applied to an amplifier? Correct Answer Input impedance

  • Feedback is the process by which a fraction of the output signal, either a voltage or a current, is used as an input
  • Feedback reduces the overall voltage gain of a system
  • Negative feedback also has effects of reducing distortion, noise, sensitivity
  • It is improving system bandwidth and input and output impedances
  • Increases the input impedance and decreases the output impedance

Related Questions

An amplifier of gain 1000 is made into a feedback amplifier by feeding 9.9% of its output voltage in series with the input opposing. If fL = 20 Hz and fH = 200 kHz for the amplifier without feedback, then due to the feedback