What do you know about input impedance, Electrical Engineering

Assignment Help:

Q. What do you know about Input Impedance?

Input Impedance  : Amplifiers will be quoted as having a specific input impedance. The sort of load it will place on preceding equipment, such as a preamplifier. It is neither practical nor useful to match the impedance of a preamp to a power amp, or a power amp to a speaker.

The load is that resistance or impedance placed on the output of an amplifier. In the case of a power amplifier, the load is most commonly a loudspeaker. Any load will require that the source (the preceding amplifier) is capable of providing it with sufficient voltage and current to be able to perform its task. In the case of a speaker, the power amplifier must be capable of providing a voltage and current sufficient to cause the speaker cone(s) to move. This movement is converted to sound by the speaker.


Related Discussions:- What do you know about input impedance

Analysis of frequency response with pspice and probe, Analysis of Frequency...

Analysis of Frequency Response with PSpice and PROBE PSpice can readily accomplish the circuit analysis as a function of frequency, and PROBE can display Bode plots for magnitu

DC machines, what are the functions of interpolar winding and compensating ...

what are the functions of interpolar winding and compensating winding?

Calculate the voltages that will be indicated by instrument, An electromech...

An electromechanical voltmeter with internal resistance of 1 k and an electronic voltmeter with internal resistance of 10 M are used separately to measure the potential differenc

#electrical wiring, how to draw electric circuit for staircase wiring using...

how to draw electric circuit for staircase wiring using 3 two way switches?

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

Characteristics of the diode, Consider a forward-biased diode with a load r...

Consider a forward-biased diode with a load resistance. Let the static volt-ampere characteristic of the diode be given by Equations, and typically represented by Figure. (a) Fo

Find out the output if resistance, Q. The input to the differentiator circu...

Q. The input to the differentiator circuit is a sinusoidal voltage of peak value 5mv and frequency 1kHZ. find out the output if R=100K and C=10^-6F Solution. The equation

Show power and power factor in ac circuits, Q. Show Power and Power Factor ...

Q. Show Power and Power Factor in ac Circuits? Power is the rate of change of energy with respect to time. The unit of power is a watt (W), which is a joule per second (J/s). T

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