Compute the feedback ratio, Physics

Assignment Help:

Q. When the negative feedback is practical to an amplifier of gain 50 the gain falls to 25.  Compute the feedback ratio?

Af = A / 1 + Aβ

25 = 50 / 1 + 50 β

1 = 2 / 1 + 50 β

1 + 50 β = 2                             (i.e) 50 β = 1

β = 1 /50 = 0.02


Related Discussions:- Compute the feedback ratio

Reducing friction with ball bearings, Reducing friction with ball bearings ...

Reducing friction with ball bearings  Find two tin cans that have a deep groove approximately the top, such as paint cans. Lay marbles in single groove and invert the other can

What are stark and zeeman effects, Q. What are Stark and Zeeman effects? ...

Q. What are Stark and Zeeman effects? It is found that while electric or magnetic field is applied to the atom all of the spectral line split into several lines. The former ef

What is least count of stop watch , The least count of the stopwatch is 0.1...

The least count of the stopwatch is 0.1 second because in stopwatch we can measure milliseconds also...

find the maximum speed of rod, A constant force of 10N is applied perpendi...

A constant force of 10N is applied perpendicular to rod placed on 2 parallel rails .If the rod is having a resistance 10ohm but rails have zero resistance then maximum speed of rod

Object located between the center of curvature and focal, Object Located Be...

Object Located Between the Center of Curvature and the Focal Point Ray diagrams are meaningful tools for denoting the location of an image as generates through a concave mirror

Rectillinear motion, An elevator is stopped at the ground floor. It starts ...

An elevator is stopped at the ground floor. It starts moving upwards at constant acceleration for 5 seconds. It then keeps a constant speed for 35 seconds. Finally, it slows down

Classes of magnetic materials: paramagnetism, In the case of materials so...

In the case of materials some of the atoms or ions in the material have a net magnetic due to unpaired electrons in partially filled orbits. However, the individual magnetic mome

Explain amplitude, Amplitude: The maximum displacement of a body on either...

Amplitude: The maximum displacement of a body on either side of the mean position during simple harmonic motion is known as amplitude and it is shown by x.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd