Calculate the feedback fraction, Physics

Assignment Help:

Q. The gain of an amplifier without feedback is 100 and the gain of an amplifier with feedback is 200. Calculate the feedback fraction.

Solution : Voltage gain after feedback,

Af = A / 1 - Aβ

200 = 100 / 1 - 100 β

2 = 1 / 1 - 100 β

2 - 200 β = 1                           (that is) 200 β = 1

β = 1 /200 = 0.005


Related Discussions:- Calculate the feedback fraction

What are bare fibers, What are bare fibers? It used mostly with PMMA fi...

What are bare fibers? It used mostly with PMMA fibers and refers to the optics which have no external protection sheath.

TRANSFORMERS, PRINCIPLES OF OPERATING DEPLETION MOSFET

PRINCIPLES OF OPERATING DEPLETION MOSFET

Calculate the mass of a proton, The mass of a proton and of an antiproton i...

The mass of a proton and of an antiproton is 1.00728 u. Recall that the conversion of exactly 1 u into energy yields 931.5 MeV. a. Measure the mass used up when a proton and

Can you differentiate between half and full wave plate, Can you differentia...

Can you differentiate between half wave plate and full wave plate?

What do you mean by time dilation, Q. What do you mean by Time Dilation? ...

Q. What do you mean by Time Dilation? To an observer a moving clock always appears to run slower. The time interval between two events occurring at a given point in space in a

Horizontal distance of the point, Cannon of mass 5m (having a shell of mass...

Cannon of mass 5m (having a shell of mass m) is at rest on a smooth horizontal ground fires the shell with its barrel at an angle A with the horizontal at a velocity u relative to

Work Power and Energy, How do I write the equation and units for work for ...

How do I write the equation and units for work for the following question: How much work does Bobby perform in pushing a 35N crate a distance of 4 meters?

Rectifier, junction diode as a half wave rectifier

junction diode as a half wave rectifier

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