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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.
The energy consumption for a small factory is given at the end of the brief. a) Three commercial tariffs from an energy supplier are shown below. Using these (or other commercia
what is the difference between ac and dc currents?
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To have the same value of P e , show that E b /N 0 in a coherent-ASK system has to be twice that in a coherent PSK system.
Which clipper would you prefer between the series and the shunt clipper? Why?
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
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A radar systemuses pulses of duration D tomodulate the amplitude of a radio carrierwave. The system can distinguish between targets spaced apart by a distance of d ≥ cD, where c is
Q. Determine briefly subscriber loop system. Give some technical specification for subscriber lines. Ans: Subscriber Loop System: Each subscriber in a telephone network is
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