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a) Sketch the small-signal equivalent circuit for a field-effect transistor (FET) and explain how it can be deduced from the properties of the real device.
b) Draw the circuit diagram for a common-source FET ac amplifier based on a voltage-divider bias scheme.
c) Draw the ac equivalent circuit for the above amplifier.
d) If the transconductance of the FET used in a common-source amplifier is 3.4 x 10-3 S and the load resistance is 4.7 kΩ, what is the approximate voltage gain of the amplifier?
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The delay in regaining the original state by a body after the removal of the deforming force is known as elastic after effect. In electrometers and galvanometers, the suspension
what are the properties of quantisation of charge??
This is due to the surface tension of water. Because of the surface tension , the drop tends to have minimum possible surface area, and the shape which is possible with minimum su
which electromagnetic wave is used to detect forged documents
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A 400V, 3-phase star linked alternator supplies a delta-connected load, each phase of which has a resistance of 30 and inductive reactance 40. Calculate (a) the current sup
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