What is output impedance, Electrical Engineering

Assignment Help:

Q. What is Output Impedance?

Output Impedance : The output impedance of an amplifier is a measure of the impedance or resistance. It has nothing to do with the actual loading that may be placed at the output. For example, an amplifier has an output impedance of 10 Ohms. This is verified by placing a load of 10 Ohms across the output, and the voltage can be seen to decrease by 1/2. However, unless this amplifier is capable of substantial output current, we might have to make this measurement at a very low output voltage indeed, or the amplifier will be unable to drive the load.


Related Discussions:- What is output impedance

Digital control system, block diagram of digital control system and explain...

block diagram of digital control system and explain each block

Briefly explain about wheatstone bridge, Q. Briefly explain about Wheatston...

Q. Briefly explain about Wheatstone Bridge? Null measurements are made with bridge circuits and related configurations. They differ from direct measurements in that the quantit

Integrator circuit, Q. Addition and integration can be combined by the summ...

Q. Addition and integration can be combined by the summing integrator circuit shown in Figure. With the given component values and input waveforms, sketch v o when S is opened at

Evaluate the available received power, (a) Some antennas have a physical ap...

(a) Some antennas have a physical aperture area A that can be identified and is related to the effective area A e by A e = ρ a A, where ρ a is known as the aperture efficiency.

Loops and subroutines, 1.....If viewing this through the Assignment tool, c...

1.....If viewing this through the Assignment tool, click the title above to go to the Submissions area. Introduction The purpose of this experiment is to examine the opera

Terms with respect to d.c machine, Q.  Define coil pitch, Back pitch, fron...

Q.  Define coil pitch, Back pitch, front pitch, pole pitch, commutator pitch, resultant pitch, Multiplex winding and degree of Re-entrant of a winding, with respect to a D.C. mach

Develop the equation of motion, Aloudspeaker is a common electrochemical tr...

Aloudspeaker is a common electrochemical transducer in which vibration is caused by changes in the input current to a coil which, in turn, is coupled to a magnetic structure that c

Compute the fourier transform, Compute the Fourier Transform of the followi...

Compute the Fourier Transform of the following function: f(x) = exp( - x 2 /(2σ 2 )) cos (2πx/k) where σ and k are constants. What is the minimum sampling rate required

Find the duration t of the pulse, By a simple time multiplexing of natural ...

By a simple time multiplexing of natural samples over a single line, a large radar site transmits 85 analog signals, each with 200-Hz bandwidth. If the sampling is done at twice th

Determine resistance in ideal inverting summing amplifier, Q. In the ideal ...

Q. In the ideal inverting summing amplifier circuit with two inputs, for R f = 10 k, find R 1 and R 2 so that v o = -10v i1 -5 vi2 .

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