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

Electrostatics , find the number of electric lines of force that radiate ou...

find the number of electric lines of force that radiate outwards from one coulomb charge in vaccum

Define term echo, Echo: The sound heard after reflection from an obstac...

Echo: The sound heard after reflection from an obstacle is known as echo.

Determine the velocity of a satellite, A satellite of mass "M" is in orbit ...

A satellite of mass "M" is in orbit around the earth. If a second satellite of mass "2M" is to be placed in the same orbit, the second satellite must have a velocity which is:

Explain zener diode, It is a highly doped p-n junction which is not smashed...

It is a highly doped p-n junction which is not smashed by high reverse current. The breakdown voltage is made very sharp. In the forward bias, the zener diode do as ordinary diode.

Force in two and three dimensions - pressure and fluids, Force in Two and T...

Force in Two and Three Dimensions - Pressure and Fluids Pressure is a force exerted over an area and is measured in Pascals (Pa). P (in Pa) = Force (in newtons) / area (

Energy, Energy: The term energy may be defined as the capacity for doin...

Energy: The term energy may be defined as the capacity for doing work.  There are two forms of energy: potential energy and kinetic energy. POTENTIAL ENERGY Potential e

Explain ball bearings, Ball bearings Place some marbles in the lid of...

Ball bearings Place some marbles in the lid of a tin on the floor. Put single foot on the marbles and notice how simply you can spin round.

What does the x represent in potential energy?, In an expression ½kx2 for t...

In an expression ½kx2 for the potential energy accumulates in the spring what does the x represent?         Answer: Quite frequently we consider there to be an object at

Explain capacitor, A new 90.0-V battery with a storage capacity of 2.5 x 10...

A new 90.0-V battery with a storage capacity of 2.5 x 10 4 C charges a 6800 μF capacitor with the switch in position A. Then the switch is thrown to position B to discharge th

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