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Transistor Switching Circuit Design
a) Sketchy a schematic diagram showing how a transistor can be used to control the operation of a relay
b) Determine what is meant by back EMF and how this can damage semiconductors
c) Show how back EMF protection can be executed in your circuit
Q. JFET Common Source Amplifier? The common source configuration for a FET is similar to the common emitter bipolar transistor configuration, and is shown in figure. The common
Q. Explain stages of attending to Rail fracture? Various stages of attending to Rail fracture / weld failure in a L.W.R. track in field - Equipment required - i) Special
Q. The N-coil windings of a three-phase, two-pole machine are supplied with currents ia,ib, and ic, which producemmfs given by F a = Ni a cos θm; F b = Ni b cos(θm - 120°); and
Q. Given the block diagram and the truth table of a demultiplexer, as shown in Figure, obtain its implementation.
Q. Design the low-pass filter shown in Figure (by determining L) to have a half-power frequency of 10 kHz.
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just to put an assignment Give only short details that are important Specially bised clamper
Q. Two stations (using identical antennas, with diameters of 50λ and aperture ef?ciencies of 0.6 at 35 GHz) are separated by 30 km. With negligible antenna losses, antenna connecti
Determine the disadvantages of GPS system - Maps not up to date hence instructed to carry out an incorrect manoeuvre (for example turn into a road that no longer exists) -
Q What do you mean by Direct coupling? In this method the a.c. output signal is fed directly to the next stage. No reactance is included in this coupling network. Special d.c.
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