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

Find the angular velocity of rotation, A mass m rotating freely in a horizo...

A mass m rotating freely in a horizontal circle of radius 1 m on a frictionless smooth table supports a stationary mass 2m, attached to the other end of the string passing through

Shear force, The shear force of a cantilever beam of length L carrying a un...

The shear force of a cantilever beam of length L carrying a uniformaly distributed load W Per unit length is how much at fixed end

How can time delay between the different modes be reduced, How can time del...

How can time delay between the different modes be reduced? The time delay between the various modes can be reduced when (a) the rays traveling off axis to the fiber are spee

Explain surface imperfection, Surface Imperfection: These are two dimensio...

Surface Imperfection: These are two dimensional and refer to a region of distortions that lies around a surface having a thickness of a some atomic diameters.

Measurement of difference in wavelength, Measurement of Difference in Wavel...

Measurement of Difference in Wavelength of Sodium D1 and D2 Lines: For the measurement of difference in wavelength of two closely spaced sodium lines firstly the M1 is adjusted for

Why are polarized sunglasses are effective, Question Why are polarize...

Question Why are polarized sunglasses are effective? Answer: If it weren't for the fact that surfaces that produce glare have a tendency to absorb vertically polariz

Modulation and transmission, The amplified video signals are amplitude modu...

The amplified video signals are amplitude modulated using a suitable r.f. carrier wave in a transmitter called ‘AM' picture transmitter. Similarly, the amplified audio signals are

Nikol prisom, How nikol prisim can use as polarizer and analyzer

How nikol prisim can use as polarizer and analyzer

Define under - over and critically damped oscillator, Briefly explain the e...

Briefly explain the equations describing under-damped, over damped and critically damped one-dimensional harmonic oscillator?

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