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

Explain the position-time graph, Two trains simultaneously leave the same t...

Two trains simultaneously leave the same train station at noon. One train travels north and the other travels south. The position-time graph or both trains is shown in the accompan

Tangent law, State two conditions which must be satisfied in order to apply...

State two conditions which must be satisfied in order to apply tangent law in magnetism

Roller Coaster Physics, A 30-g car rolls from a hill 12 cm high and is trav...

A 30-g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. What is the momentum of the car?

Potentiometer, The emf of the driver cell of a potentiometer is 2V & its in...

The emf of the driver cell of a potentiometer is 2V & its internal resistance is negligible . The length of the potentiometer wire is 100cm & resistance is 5 ohm.How much resistanc

An atom which has lost one electron would be, An atom which has lost one el...

An atom which has lost one electron would be: (1) Negatively charged   () Positively charged   (3) Electrically neutral  (4) Carry double positive charge Ans:  Elec

What is the equation of paths in equilateral triangle, Three small snails ...

Three small snails are each at a vertex of an equilateral triangle of side 60 cm. The ?rst sets out towards the second, the second towards the third and the third towards the ?rst,

Determine the concept of beam of light, When a certain beam of light falls ...

When a certain beam of light falls upon a metal surface, it ejects photoelectrons from it.  The number of photoelectrons ejected per second by the beam of light depends upon on

Projects of electomagnetic induction, i want to do a project of physics the...

i want to do a project of physics the topic is electo magnetic induction. i want d topic and procedure

Average speed, A boy goes to market with a average speed of 29 km/h.He retu...

A boy goes to market with a average speed of 29 km/h.He returns back half the way he went with a average speed of 40 km/h.Find average speed for whole journey.

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