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 low-frequency response of RC coupled amplifier. What are the reasons for reduction in gain at low frequencies?
The RC coupled amplifier circuit contains capacitors. Capacitors (and inductors) are frequency-dependent elements. Since they are present in the circuit, the output immediately becomes a function of frequency. Shown above is the frequency response curve of an RC coupled amplifier. The curve illustrates how the magnitude of voltage gain of an amplifier varies with input signal.
The gain is constant only for a limited set of frequencies known as the mid-frequency range. In mid-frequency range, the coupling capacitor and the bypass capacitor behaves as though short circuited.
When frequency is low, the capacitors have high reactance (Xc=1/2?fc) which results in a less gain as compared to the mid-frequency region. At zero frequency, the reactance of the capacitor will be infinitely large and there will be no output.
Design a Mealy system whose output is 1 iff there have been exactly two 1's followed by a 0 and then a 1. (a) Assume overlapping is allowed (b) Assume overlapping is not
what is mean by decoder
In use, an appropriate bias voltage is applied between the two bases, with B2 made positive with respect to B1. Because the N-type bar is resistive, a relatively small current will
what is the application of thermodynamics in electrical engineering?
Sub Threshold The sub threshold I-V curve depends exponentially on the threshold voltage, introducing a strong reliance on any manufacturing variation that influences threshol
The torque produced by each conductor in the field will be: where A is the area of the armature winding in the magnetic field, Ia is the current in armature winding, and B
Q. A transistor has a base current i B = 25 µA, α = 0.985, and negligible ICBO. Find β, iE, and i .
Q. Describe about digital communication systems fl A digital signal can be deflned as having any one of a finite number of discrete amplitudes at any given time. The signal coul
Find the resonant frequency: Find the resonant frequency ω0 (or f0) for the given series RLC circuit v = Vm sin ωt = 50 sin ωt Figure Also determine the expre
Explain the Synchronous Machines? A synchronous machine, unlike an induction (or asynchronous) machine, only develops torque at a fixed, so called, synchronous speed - n s whi
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd