Recent questions tagged feedback

1 answer 12 views

Write advantages and disadvantages of positive and negative feedback.

asked Sep 5, 2018 by Shimroz123
1 answer 6 views

Differentiate between positive and negative feedback.

asked Sep 5, 2018 by Shimroz123
1 answer 6 views

Define negative and positive feedback

asked Sep 5, 2018 by Shimroz123
1 answer 23 views

The effect of negative feedback on distortion and bandwidth is A) Both distortion and bandwidth get decreased B) Both distortion and bandwidth get increased C) Distortion is reduced and bandwidth is increased D) Distortion is increased and bandwidth is decreased 

asked Jun 18, 2018 in Control System by Shimroz123
1 answer 19 views

Given a unity feedback system with G(s)=k/s (s+4), the value of k for damping ratio of 0.5 is

asked May 8, 2018 in Control System by Zeeshan
1 answer 34 views

An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of the amplifier with feedback is  (1) 141 (2) 92.3 (3) 9.23 (4) 1.41

asked May 1, 2018 in Power Electronics by Shimroz123
1 answer 26 views

A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the system (A) crosses the real axis at +0.1 (B) crosses the real axis at -0.1. (C) crosses the imaginary axis at -0.1 (D) crosses the imaginary axis at +0.1

asked Apr 28, 2018 in Control System by Shimroz123
1 answer 15 views

Negative feedback in a closed-loop control system DOES NOT (A) reduce the overall gain (B) reduce bandwidth (C) improve disturbance rejection (D) reduce sensitivity to parameter variation

asked Apr 26, 2018 in Control System by Shimroz123
0 answers 30 views

What is meant by feedback in electronics?

asked Mar 10, 2018 in Analog electronics circuits by Quiz
0 answers 18 views

Why feedback is required in oscillators?

asked Mar 10, 2018 in Analog electronics circuits by Quiz
0 answers 179 views

How does negative feedback reduces distortion in an amplifier?

asked Mar 10, 2018 in Electronics Engineering by Quiz
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