Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Explain the bandwidth for the curve and the applications of an RC coupled amplifier.
Frequency response curve of an RC coupled amplifier was shown above(prev page). The cut off frequencies f1 and f2 are marked . The difference of the two frequencies i.e the upper cut off frequency f2 and the lower cut off frequency f1 is called the bandwidth.(BW).
Therefore BW = f2 - f1.
The BW of an amplifier can also be defined as the range of frequencies from lowest to the highest over which the amplifier delivers sufficient gain. The word sufficient here depends on the applications however...but the common convention is to take the gain when its dropped by 3 dB.
To decide what BW an audio amplifier requires it again depends mostly on the application. For eg for a telephone circuit, the range is 300hz to 3300 hz, whereas for a hi-fi audio system the BW required is 20 hz - 20 Khz.
Applications : The RC coupled transistor amplifiers are widely used as voltage amplifiers(in the initial stage of public address systems) because of their excellent audio fidelity over a wide range of frequency.However,because of poor impedance matching, this type of coupling is rarely employed in the final stages.
LT Metering or Low Tension Metering The subsequent types of meters are generally used for LT consumers: Whole Current Meters i) Single phase meters ii) 3-phase
It has been known for a thousand years or more (originating in China) that certain (magnetic) materials would always orientate themselves in a particular direction if suspended
A slight modification of the elevator algorithm for scheduling disk requests is to always scan in the same direction, In what respect is this modified algorithm better than the ele
Q. What is a Modem? Modems are generally used to interface digital circuits to transmit information on analogue channels such as telephone systems. Modem (from modulator-demodu
Q. Enumerate different types of errors in measurement. How can these errors be minimized. Sol. Types of errors: Errors may arise from different sources and
1. Design four (4) different 5 volt DC power supplies to operate from 230 volts AC. The four power supplies are to have the same full wave rectifier with capacitive filte
Give a short description of soft ferrites . Soft ferrites and their applications: all non- metallic compounds are consisting of ferric oxide and one or two bivalent metal oxid
Explain Overhead Lines and Transformers? Overhead lines absorb reactive power when fully loaded. A line with a current I A, a line reactance of X L ?/phase absorbs I 2 X L V
List the operation modes of 8255 a) I.O Mode i. Mode 0-Simple Input/Output. ii. Mode 1-Strobed Input/Output (Handshake mode) iii. Mode 2-Strobed bidirectional mode
Normal 0 false false false EN-IN X-NONE X-NONE 8085MICROPROCESSOR ARCHITECTURE
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd