Negative feedback is used in audio amplifiers to

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Negative feedback is used in audio amplifiers to Reduce distortion.

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Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Description : Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Last Answer : (1) increases bandwidth and decreases noise Explanation: Voltage gain, input impedance, output impedance, bandwidth etc. are few important characteristics of an amplifier. These parameters are more or ... be controlled. This can be conveniently achieved by employing a technique, called the feedback.

Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Description : Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Last Answer : (1) increases bandwidth and decreases noise Explanation: Voltage gain, input impedance, output impedance, bandwidth etc. are few important characteristics of an amplifier. These parameters are more or ... be controlled. This can be conveniently achieved by employing a technique, called the feedback.

Negative feedback in amplifiers (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and increases noise (4) decreases bandwidth and increases noise

Description : Negative feedback in amplifiers (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and increases noise (4) decreases bandwidth and increases noise

Last Answer :  increases bandwidth and decreases noise

Comment on the effect of negative feedback on the gain, input and output resistance of the feedback amplifiers.Describe the gain bandwidth product term used in this context and its importance.

Description : Comment on the effect of negative feedback on the gain, input and output resistance of the feedback amplifiers.Describe the gain bandwidth product term used in this context and its importance.

Last Answer : Effect of negative feedback: 1. Gain decreases with negative feedback. 2. Input resistance increases with negative feedback. 3. Output resistance decreases with negative feedback. Explanation ... feedback bandwidth increases which means it is stable output on more range of frequency.

Negative feed back reduces - - - - in amplifiers

Last Answer : Negative feed back reduces Distortion in amplifiers 

The conversion of the throttle command voltage to the signal necessary to achieve the desired shaft RPM is accomplished by the _____________. A. ahead or astern function generator of the throttle control circuit B. feedback resistor of the summing amplifier circuit C. operational amplifiers in the autorotation circuit D. long time constant amplifier circuit

Description : The conversion of the throttle command voltage to the signal necessary to achieve the desired shaft RPM is accomplished by the _____________. A. ahead or astern function generator of the ... circuit C. operational amplifiers in the autorotation circuit D. long time constant amplifier circuit

Last Answer : Answer: A

Which of the following contributes to harmonics distortion in amplifiers? A) Positive feedback B) Presence of noise C) Defective active device D) Non linearity in active device.

Description : Which of the following contributes to harmonics distortion in amplifiers? A) Positive feedback B) Presence of noise C) Defective active device D) Non linearity in active device.

Last Answer : D) Non linearity in active device.

different types of feedback amplifiers

Description : 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

Negative feedback in amplifier: ...

Description : Negative feedback in amplifier:  (1) Improves the SNR at input (2) Improve SNR at output (3) Reduces distortion (4) Decreases bandwidth

Last Answer : Negative feedback in amplifier: Reduces distortion.

Amplifiers are coupled to - - - -

Last Answer : Amplifiers are coupled to Increase gain

If three stage amplifiers has individual stage gain of 10 db, 5 db & 12 db then the total gain

Last Answer : If three stage amplifiers has individual stage gain of 10 db, 5 db & 12 db then the total gain 27 db

Tuned amplifiers are used for - - - - frequency amplification

Last Answer : Tuned amplifiers are used for Radio frequency amplification

In all base driver amplifiers

Last Answer : In all base driver amplifiers ac collector voltage is 180° out of phase with ac base voltage.

what are bjt amplifiers used for?

Last Answer : Transformer coupled amplifiers Direct coupled amplifiers Multistage amplifiers Darlington amplifiers Emmiter follower

Could you guys give me feedback on my "3D audio" attempt?

Description : Could you guys give me feedback on my "3D audio" attempt?

Last Answer : It’s definitely different from other versions I have heard. I think it’s got some nice parts, the ‘spaciousness’ for one. What I am not fond of, is the delay in the beginning, in the “Mama” section. I assume you know of the Youtube channel Binaulab? If not, here is it.

Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector

Description : Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector 

Last Answer : Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector 

Feedback factor at the frequency of oscillation of a Wien bridge oscillator is:

Description : Feedback factor at the frequency of oscillation of a Wien bridge oscillator is:  (1) 3 (2) 1/3 (3) 1/29 (4) 3/29

Last Answer : Feedback factor at the frequency of oscillation of a Wien bridge oscillator is: 1/3.

Positive feedback is the same as

Last Answer : Positive feedback is the same as Regeneration.

It's been two months and I still haven't received an item that I purchased on Etsy, what can I do besides giving negative feedback (I would really like my money back)

Description : It's been two months and I still haven't received an item that I purchased on Etsy, what can I do besides giving negative feedback (I would really like my money back)

Last Answer : answer:If you paid through paypal or a credit card, you can contact them about receiving a refund. From experience, paypal is a pain to deal with on this sort of thing, but your credit card company will ... Jelly enforcer in their area to go do some convincing if they give you any lip. Good luck.

How do I keep myself hopeful after reading multiple posts of negative feedback in a profession I'm going into?

Description : How do I keep myself hopeful after reading multiple posts of negative feedback in a profession I'm going into?

Last Answer : Talk to some actual workers in the field that you know and ask them. You should pick people who like their jobs.

How does negative feedback works like a thermostat?

Description : How does negative feedback works like a thermostat?

Last Answer : Need answer

How does the negative feedback mechanism work?

Description : How does the negative feedback mechanism work?

Last Answer : The negative feedback mechanism is important in many biological processes. The process can be shut off by the accumulation of products further along in the process.

increases the steady state accuracy. (a) Integrator (b) Differentiator (c) Phase lead compensator (d) Phase lag compensator Ans:A 10.As a result of introduction of negative feedback which of the following will not decrease ? (a) Band width (b) Overall gain (c) Distortion (d) Instability

Description : increases the steady state accuracy. (a) Integrator (b) Differentiator (c) Phase lead compensator (d) Phase lag compensator Ans:A 10.As a result of introduction of negative feedback which of the following will not decrease ? (a) Band width (b) Overall gain (c) Distortion (d) Instability

Last Answer : Ans: A

In the illustrated circuit, the amplifier is connected in what basic configuration? EL-0022 A. common base B. reverse bias, negative feedback C. common emitter D. common collector

Description : In the illustrated circuit, the amplifier is connected in what basic configuration? EL-0022 A. common base B. reverse bias, negative feedback C. common emitter D. common collector

Last Answer : Answer: C

What are the Characteristics of Negative Feedback?

Description : What are the Characteristics of Negative Feedback?

Last Answer : Negative Feedback in a Control System has following Characteristics Reduction in the gain at the expense of better stability of the system Rejection of disturbance signals in the system Low Sensitivity to parameter variations Accuracy in tracking the steady state value

Why Negative Feedback is preferred in the Control System?

Description : Why Negative Feedback is preferred in the Control System?

Last Answer : The role of Feedback in control system is to take the sampled output back to the input and compare output signal with input signal for error ( deviation from the desired result). ... and is less sensitive to the parameter variations. Hence in control systems negative feedback is considered.

Strong interference from one particular station can be eliminated by the use of A. noise limiters B. squelch circuits C. negative feedback D. wave traps in the antenna circuitry

Description : Strong interference from one particular station can be eliminated by the use of A. noise limiters B. squelch circuits C. negative feedback D. wave traps in the antenna circuitry

Last Answer : D. wave traps in the antenna circuitry

When no signal is being received, the loudspeaker is not entirely silent as a result of the presence of A. parasitic oscillations in some of the receiver stages. B. negative feedback in each stage. C. spurious frequencies as a result of improper neutralization. D. internal receiver noise.

Description : When no signal is being received, the loudspeaker is not entirely silent as a result of the presence of A. parasitic oscillations in some of the receiver stages. B. negative feedback in each stage. C. spurious frequencies as a result of improper neutralization. D. internal receiver noise.

Last Answer : D. internal receiver noise.

The negative Feedback in amplifier

Description : The negative Feedback in amplifier

Last Answer : Increase in band width in and decrease in noise.

Benefits of negative feedback include A. less distortion B. increased bandwidth C. low output resistance D. all of above

Description : Benefits of negative feedback include A. less distortion B. increased bandwidth C. low output resistance D. all of above

Last Answer : all of above

.Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition because excess of β-galactosidase can switch off transcription (c) positive and inducible because it can be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Description : .Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition ... be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Last Answer : (d) negative and inducible because repressor protein prevents transcription.

Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. all above

Description : Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. all above

Last Answer : all above

Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition because excess of β-galactosidase can switch off transcription (c) positive and inducible because it can be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Description : Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition ... be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Last Answer : (d) negative and inducible because repressor protein prevents transcription.

The sulfa drugs work by _______ with PABA in making folic acid. a. Positive Feedback b. Negative Feedback c. Competitive Inhibition d. Allosteric Inhibition

Description : The sulfa drugs work by _______ with PABA in making folic acid. a. Positive Feedback b. Negative Feedback c. Competitive Inhibition d. Allosteric Inhibition

Last Answer : c. Competitive Inhibition

Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH is no longer released from the hypothalamus. C) Uterine stretching sends nerve impulses to the hypothalamus that releases oxytocin that triggers uterine contraction. D) FSH and LH stimulate the gonads to produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Description : Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH ... produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Last Answer : B) When the blood becomes dilute, ADH is no longer released from the hypothalamus

A negative reaction to a mediated communication is described as: (A) flak (B) fragmented feedback (C) passive response (D) non-conformity

Description : A negative reaction to a mediated communication is described as: (A) flak (B) fragmented feedback (C) passive response (D) non-conformity 

Last Answer : Answer: C  Explanation: Mediated communication refers to communication carried out by the use of information communication technology, and can be contrasted to face-to-face communication. 

State advantages of negative feedback used in feedback amplifier.

Description : State advantages of negative feedback used in feedback amplifier.

Last Answer : Advantage of negative feedback amplifier: * Increased stability in gain * Increased bandwidth * Less amplitude and harmonic distortion * Decreased noise * Less frequency distortion * Less non-linear distortion * Input and output resistance can be modified as desired

Compare positive and negative feedback.

Description : 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

advantages of negative feedback over positive feedback.

Description :  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.

Differentiate between positive and negative feedback on the basis of . (i) overall phase shift (ii) voltage gain (iii) stability (iv) applications

Description : Differentiate between positive and negative feedback on the basis of . (i) overall phase shift (ii) voltage gain (iii) stability (iv) applications 

Last Answer : Compare positive feedback and negative feedback on the basis of: (i) Gain (ii) Bandwidth (iii) Phase shift (iv) Stability

Write advantages and disadvantages of positive and negative feedback.

Description : 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.

Differentiate between positive and negative feedback.

Description : 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

Define negative and positive feedback

Description : Define negative and positive feedback

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. 

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

Description : 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 

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

A negative feedback loop returning a voltage to the input raised the input impedance and making the circuit a better

Description : A negative feedback loop returning a voltage to the input raised the input impedance and making the circuit a better

Last Answer : A negative feedback loop returning a voltage to the input raised the input impedance and making the circuit a better voltage sensor

An amplifier without feedback has a gain of 1000. The gain with a negative feedback of 0.009 is

Description : An amplifier without feedback has a gain of 1000. The gain with a negative feedback of 0.009 is  A) 10 B) 100 C) 125 D) 900

Last Answer : 100

Negative feedback amplifier has a signal corrupted by noise as its input. The amplifier will

Description : Negative feedback amplifier has a signal corrupted by noise as its input. The amplifier will   (A) Amplify the noise as much as the signal (B) Reduce the noise (C) Increase the noise (D) Not effect the noise

Last Answer : Negative feedback amplifier has a signal corrupted by noise as its input. The amplifier will Reduce the noise

Negative feedback in an amplifier is accompanied by

Description : Negative feedback in an amplifier is accompanied by (A) Gain less sensitive to component variations (B) Increase in gain (C) Decrease in bandwidth (D) None of the above

Last Answer : Negative feedback in an amplifier is accompanied by Gain less sensitive to component variations 

What is the importance of negative feedback in the operational amplifier?

Description : What is the importance of negative feedback in the operational amplifier? (A) It maintains the gain (B) The voltage difference between the input terminals is maintained at a very small value ( ... value (D) The voltage difference between the input terminals is maintained at a very high value

Last Answer : The voltage difference between the input terminals is maintained at a very small value