GATE IN concept:mosfet PYQs & Answers

Questions 1–5 of 5. Imported answers require independent review unless marked reviewed.

In the small signal circuit shown, the enhancement mode n-channel MOSFET is biased in saturation with transconductance

. If channel length modulation is ignored, the small signal impedance looking into the node P is given by ______

Diagram for Instrumentation Engineering question 44

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In the small signal circuit shown, the enhancement mode n-channel MOSFET is biased in saturation with a transconductance

. A small signal low-frequency voltage

injected at the supply terminal results in a small signal voltage

at the output. If the channel length modulation of the MOSFET is ignored, the small signal gain

is given by ______

Diagram for Instrumentation Engineering question 47

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A voltage amplifier is constructed using enhancement mode MOSFETs labeled M1, M2, M3 and M4 in the figure below. M1, M2 and M4 are n-channel MOSFETs and M3 is a p-channel MOSFET. All MOSFETs operate in saturation mode and channel length modulation can be ignored. The low frequency, small signal input and output voltages are

and

respectively and the dc power supply voltage is

. All n-channel MOSFETs have identical transconductance

while the p-channel MOSFET has transconductance

. The expressions for the low frequency small signal voltage gain

Diagram for Instrumentation Engineering question 33

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In the circuit shown below, all transistors are n-channel enhancement mode MOSFETs. They are identical and are biased to operate in saturation mode. Ignoring channel length modulation, the output voltage

is ______ V.

Diagram for Instrumentation Engineering question 50

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In the circuit, shown in the figure, the MOSFET is operating in the saturation zone. The characteristics of the MOSFET is given by

, where

is in V. If

, then the value of

in k

is __________.

Diagram for Instrumentation Engineering question 41

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GATE IN concept:mosfet PYQs

How to practice concept:mosfet

Question 44

Question 47

Question 33

Question 50

Question 41