Recent questions tagged feedback

Description : Suggestion: Could responses to questions be given a time stamp?

Last Answer : I really love this idea and have often wondered why there was no time stamp. (I do realize that I didn’t answer your question though!)

Description : Suggestion: Could ask-public incorporate a captcha code when signing up?

Last Answer : Good idea except there is no development work being done for ask-public. The founders have moved on to other ventures.

Description : What do you think about customer service people telling you to give them all excellents on surveys?

Last Answer : The car dealerships take those surveys seriously. Anything less than an excellent is considered bad. It really does suck. Guys can get fired over it. They also effect the dealers standing with the ... review is a negative. I always give them excellent a unless they do something especially bad.

Description : I am looking for a sweet-tasting cigarillo!

Last Answer : Swisher Sweets should work for you

Description : Can you describe how other "jellies" might view yourself by using words they might use?

Last Answer : Looking grass self.

Description : Have you seen my website? Would you give me some feedback?

Last Answer : It appears I’m using Internet Explorer and your website made my computer freeze. I had to open Task Manager and end the program to get back up and running.

Description : Do you find it easier to praise or criticise?

Last Answer : Praise. After two children, three grandchildren, one great grandchild and countless dogs, I have learned that all the above respond more favorably to praise, rather that being critical.

Description : What do you do to find trustworthy feedback?

Last Answer : Look them in the eye in a confident way and say “Don’t lie to me. Be honest.” Usually works for me.

Description : I'm an aspiring author. Is there anyone out there that would like to read my manuscript and give me honest feedback?

Last Answer : Yes, I’ll give it a go. I’ll send you an email.

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

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.

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

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.

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

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. 

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

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

Last Answer : Given a unity feedback system with G(s)=k/s (s+4), the value of k for damping ratio of 0.5 is 16

Description : 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

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

Description : 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

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.

Description : 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