The MOSFET based circuit shown in the figure below is used for the purpose of small signal analysis. If $V_{s i g} a n d V_{0}$ are small signal input and output voltages respectively, then the circuit represents

Source follower amplifier

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Common gate amplifier

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Common source amplifier

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Common drain amplifier

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Solution

The correct option is B Common gate amplifier
Common gate amplifier

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Similar questions

Q. The figure shown below represents a MOS transistor with

$K_{n} = \frac{μ_{n} C_{o x} W}{2 L} = 10 m A / V^{2}$ . The figure is constructed for the purpose of the small signal analysis. If the MOSFET is biased at a D.C. current $I_{D}$ of 10 mA and a small signal input voltage of $V_{s i g} = 1 m V$ is applied, then the small signal output $(V_{0})$ will be equal to _______ V.
(Assume that the effect of channel length modulation is negligible)