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

D.c machine, What are the advantages of distributing windings in an alterna...

What are the advantages of distributing windings in an alternator?

Help assignments, A three-phase transposed line is composed of one conducto...

A three-phase transposed line is composed of one conductor per phase with flat horizontal spacing of 11 m as shown in Figure 1(a). The conductors have a diameter of 3.625 cm and a

Module of the rated currents - transformer, Module of the rated currents - ...

Module of the rated currents - transformer: The transformer of the Face(Figure) 2 is a transformer of type Delta-Y (the neutral of Y is grounded). The rated output is of 1500

Show npn common collector amplifier, Q. Show NPN Common Collector Amplifier...

Q. Show NPN Common Collector Amplifier? The common collector amplifier, often called an emitter follower since its output is taken from the emitter resistor, is useful as

Amplifier, Amplifier Usually, an amplifier or simply amp, is any devic...

Amplifier Usually, an amplifier or simply amp, is any device which changes, generally increases, the amplitude of a signal. The connection of the input to the output of an amp

Measure and set frequency by using an oscilloscope, 1. Introduction : ...

1. Introduction : Theory: Frequency is the number of occurrences of a repeating event per unit time. It can also be defined as the number of repetitions (cycles) of a w

Opto couplers, Is there an opto-coupler that has a blocking voltage, VRRM, ...

Is there an opto-coupler that has a blocking voltage, VRRM, of greater than 800 volts? Perhaps, 1200 or 1600 volts? The manufacturer?

Design three-bit counter using t flip-flops, (a) A universal shift regist...

(a) A universal shift register can shift in both the left-to-right and right-to-left directions, and it has parallel-load capability. Draw a circuit for such a shift register.

Explain the purposes of modulation and demodulation, Question The diagr...

Question The diagrams below depict a modulation (left) and a demodulation(right). (a) Express y(t), u(t) and z (t). (b) What may happen to the demodulated signal y

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