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.
Q. The circuit shown in Figure is the equivalent circuit of a field-effect transistor (FET) amplifier stage. (a) Determine the y-parameters. (b) For values of µ = g m /g d >
Q. What is Induction machines? We shall first consider polyphase induction motors and then single-phase induction motors. The polyphase induction motors used in industrial appl
Q. A dc source is connected to a series RLC circuit by a switch that closes at t = 0, as shown in Figure, with initial conditions. For the values of R = 20, 40, and 80 , solve for
Mould Casting: Plaster Moulding : In this method, the mould is prepared in gypsum or plaster of paris. In practice, the plaster of paris is mixed with tale, asbestos, fibers
Design 2-bit bidirectional shift register? ## A list of ten 8-bit numbers is located at address $5000. Write a 68000 Assembly program (flowchart and code) to sort those numbe
Q. The magnitude spectrum of a continuous image is as given below. a) Sketch the frequency response of the sampled spectrum if ωs =1.5 ωm along x and 3ωm along y directions
What are the Disadvantages of using robots - They can find it difficult to deal with 'unusual' circumstances for example a door is missing from a car waiting on the paint spra
principle and operation of 3phace induction motor
Find V and I in the figure given below using ideal diode model
Q. what is oscilloscope probe compensation and how is it adjusted? What effects are noted when the compensation is not correctly adjustment? Direct Probe: This probe is
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