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

Estimate how much energy is transferred as heat , 2 moles of an ideal gas e...

2 moles of an ideal gas expand isothermally and reversibly  from 50.0 dm 3 to 97.8 dm 3 at a temperature of 63.7 o C. (i) Calculate the entropy change for this process,

Bernoullis theorem, what is the theory behind bernoullies theorem?

what is the theory behind bernoullies theorem?

What is the direction of the magnetic field, An electron beam projected alo...

An electron beam projected along +X-axis, experiences a force because of a magnetic field along the +Y-axis. What is the direction of the magnetic field?

State the forward characteristic of zener diode, Forward Characteristic of ...

Forward Characteristic of Zener diode Connect the circuit demonstrated in fig (a) using the 5.1 V zener diode. For forward characteristic, reverse the connection of zener di

Explain the transmission of heat, Explain the Transmission of Heat Tran...

Explain the Transmission of Heat Transmission of heat (movement of heat from the hotter item to the colder item) can be brought about three ways: by conduction, convection, and

Determine the b-h curves, Figure  shows the magnetic circuit of a relay. ...

Figure  shows the magnetic circuit of a relay. When each of the air gaps are 1.5mm wide find the mmf required to produce a flux density of 0.75 T in the air gaps. Use the B-

Rotational kinematics.., A wheel is mounted on a stationary axle starts at ...

A wheel is mounted on a stationary axle starts at rest and is given the following angular acceleration a =(9-12t) (SI units)where t is the time after the wheel begins to rotate.Fin

Twin paradox, Twin paradox: One of the most popular "paradoxes" in his...

Twin paradox: One of the most popular "paradoxes" in history, predicted trhough A. Einstein's special theory of relativity. Take two twins, born on the similar date on Earth.

Evaluate the maximum work done, 10 moles of an ideal gas expands reversibly...

10 moles of an ideal gas expands reversibly and isothermally from a volume if 5 lit. to 50 lit. at 25°C. Find the maximum work done? Express the result in Joules.

Give any two methods of electric lines of force, Give any two methods of el...

Give any two methods of electric lines of force. Sketch them for an isolated positive point charge.

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