What is meant by feedback in electronics?

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asked Mar 10, 2018 by anonymous

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Negative feedback in a closed-loop control system DOES NOT

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

Last answer: Negative feedback in a closed-loop control system DOES NOT reduce bandwidth

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How does negative feedback reduces distortion in an amplifier?

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Basic electrical and electronics engineering practicals for diploma 22310 MSBTE

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asked Jun 18, 2018 by anonymous

The effect of negative feedback on distortion and bandwidth is A) Both distortion and bandwidth get

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Last answer: The effect of negative feedback on distortion and bandwidth is Distortion is reduced and bandwidth is increased

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asked May 8, 2018 by anonymous

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

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asked May 1, 2018 by anonymous

An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of

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Last answer: An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of the amplifier with feedback is 9.23

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asked Apr 28, 2018 by anonymous

A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the

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Last answer: A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the system crosses the real axis at -0.1.

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asked Sep 3, 2019 by anonymous

Compare positive and negative feedback.

Last answer: Sr. No. Parameter Positive feedback Negative feedback 1 BW Increases Decreases 2 Feedback signal In phase with the input signal. 180 º out of phase ... impedance increases decreases 9 Uses Oscillators, Schmitt trigger Amplifiers, bootstrapping

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asked Sep 3, 2019 by anonymous

advantages of negative feedback over positive feedback.

Last answer: Advantages of negative feedback over positive feedback: 1. Higher fidelity i.e. more linear operation. 2. Highly stabilized gain. 3. Increased bandwidth i.e. improved frequency response. 4. Less ... . 8. Input and output impedance can be modified as desired. 9. Less frequency distortion.

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asked Sep 3, 2019 by anonymous

different types of feedback amplifiers

Last answer: Types of feedback amplifiers: 1. Positive feedback amplifiers 2. Negative feedback amplifiers (i)voltage series feedback amplifiers (ii)voltage shunt feedback amplifiers (iii)current series feedback amplifiers (iv)current shunt feedback amplifiers

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asked Sep 5, 2018 by anonymous

Write advantages and disadvantages of positive and negative feedback.

Last answer: Advantages of Positive Feedback: i) Voltage gain increases. ii) No phase shift is provided. iii) Feedback signal and input signal are in phase. iv) Input and Output voltage increases. ... ii) Feedback signal and input signal are out of phase. iii) Input and Output voltage decreases.

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Differentiate between positive and negative feedback.

Last answer: PARAMETER POSITIVE FEEDBACK NEGATIVE FEEDBACK Overall phase shift 0° or 360° 180° Feedback and input signal Are in phase Are out of phase Input signal ... Increases Input impedance Decreases Increases Output impedance Increases Decreases

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Last answer: 1. Negative feedback: Feedback in which feedback signal is out of phase with input signal and it decreases output is called negative feedback. 2. Positive feedback: Feedback in which feedback signal is in phase with input signal and it increases output is called positive feedback.

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What is meant by feedback in electronics?

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