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

Release of energy by the process of nuclear fusion, Draw a graph showing th...

Draw a graph showing the variation of binding energy per nucleon with mass number for dissimilar nuclei. Describe, with the help of this graph, the release of energy by the process

Obt, Obtain expression for an optical path difference for formation of circ...

Obtain expression for an optical path difference for formation of circular fringe in Michelson''s interferometer

What is magnetic flux density?, It is defined as the magnetic lines of forc...

It is defined as the magnetic lines of force per unit area of the pole face.                                                    B=φ/A where φ is the magnetic lines of f

Determine the tension in the cable, The tree needs to fall uphill even thou...

The tree needs to fall uphill even though it is leaning downhill.  The felling notch at O is sufficiently large so that the resisting moment at O is negligible.  The trunk above po

Rutherford''s Experiment , My question is that if voltage is increased, the...

My question is that if voltage is increased, the electrons will move faster and the distance between them is changed. Why?

Cph theory is able explain the universe future, if CPH has mass, so CPH The...

if CPH has mass, so CPH Theory is able explain the universe future. Universe should collapse. And it is able explain dark matter too. Am I wrong? Answer; you are correct that C

Calculate the gradient of the function, A scalar function is given by f(x, ...

A scalar function is given by f(x, y, z) = 2xy 2 + xyz 3 . Calculate the gradient of the function at the point (1, 1, 1).

Principle of electric motor, An electric motor is a device which converts e...

An electric motor is a device which converts electrical energy into mechanical energy. Principle of electric motor : An electric motor essentially consists of a rectangular co

Calculate the velocity of rock thrown upward, A rock is thrown upward with ...

A rock is thrown upward with a speed of 26 m/s. How long after it is thrown will the rock have a velocity of 48 m/s toward the ground?

What do you understand by end correction, What do you understand by "End co...

What do you understand by "End correction" in resonating air column? What occures to the frequency of a tuning fork a) When it is loaded with a little wax and b) When it is file

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