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

Sara, a sinusodal transverse wave is travelling on a string any point on th...

a sinusodal transverse wave is travelling on a string any point on the string

Determine performance of program, In order to determine performance of prog...

In order to determine performance of program normal form of analysis of program is to just calculate total amount of CPU time needed to execute different part of program it implies

Instant answer, calculate the acceleratio due to gravity on planet mercury ...

calculate the acceleratio due to gravity on planet mercury if mass = 2.99 x 10 9to the power 23)kg and radius = 2.42 x 10( to the power 6) metres.

Single pv cell design., give the complete explaination with design formulae...

give the complete explaination with design formulae of single pv cell?

Mathematical expression for dispersive power, Arrive at the mathematical ex...

Arrive at the mathematical expression for dispersive power of the material of a prism in terms of angle of deviation. Determine the critical angle for the material of refractiv

Trojan points and satellites, Trojan points: It is L4 & L5, the two dy...

Trojan points: It is L4 & L5, the two dynamically stable Lagrange points (under certain conditions). Trojan satellites: This is the satellites that orbit a body at o

Define types of sound waves, According to their frequencies, waves are sepa...

According to their frequencies, waves are separated into three categories: (1) Audible or sound waves : Range 20 Hz to 20 KHz. These are formed by vibrating bodies like as voc

Magnetism, What are the General Properties of Magnet

What are the General Properties of Magnet

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