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Q. What do you mean by Feedback in amplification?
Feedback : Feedback in its broadest sense means that a certain amount of the output signal is "fed back" into the input. An amplifier - or an element of an amplifying device - is presented with the input signal, and compares it to a "small scale replica" of the output signal.
If there is any difference, the amp corrects this, and ideally ensures that the output is an exact replica of the input, but with a greater amplitude. Feedback may be as a voltage or current, and has a similar effect in either case.
Q. What is Session Layer? Session layer is used to allow users to identify themselves when waiting access to the network. This is concerned with setting up and sustaining an op
how does a colpitts oscillator works an also explain the principle
1. Write the Boolean expression and draw the gate logic diagram and typical PLC ladder logic diagram for a control system wherein a fan is to run only when all of the following con
Why do we use XRA A instruction The XRA A instruction is used to clear the contents of the Accumulator and keep the value 00H.
Zener breakdown: Zener Breakdown takes place in very thin junction i.e. when both sides of junction layer is narrow. When a small reverse bias voltage is applied a Very strong
Q. In the magnetic circuit shown in Figure the center leg has the same cross-sectional area as each of the outer legs. The coil has 400 turns. The permeability of iron may
Level 1 is means of sending bit streams over a physical path. It uses times lot 16 of a 2 M bit/s PCM system or times slot 24 of a1.5 M bit/s system. Level 2 performs functions
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
Describe the physical properties and uses of the Brasses. Brass - It is an alloy of copper and zinc along with 60 percent copper and 40 percent zinc. Its properties are- 1.
Calculate power delivered to the network: 1. A wave is traveling from left to right, emerging from Z g =50 with a peak amplitude of V p =5V. The 1-port network [S] has in=0.5-
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