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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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Category:- Physics
Reference No.:- M9524840

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