GATE EE 2019 Set 1 — Question 43
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Analog & Digital Electronics → Amplifiers & Feedback → BJT & FET Biasing
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Question
The enhancement type MOSFET in the circuit below operates according to the square law. , the threshold voltage () is . Ignore channel length modulation. The output voltage is

Correct answer
(C) 600 mV
Solution
The MOSFET is in saturation because the gate and drain are shorted (). The drain current in saturation is given by the square law equation:Given values:
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