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  1. GATE2019-80
  2. GATE2019-80
  3. GATE2019-80
  4. GATE2019-80

Given $V_{gs}$ is the gate-source voltage, $V_{ds}$ is the drain source voltage, and $V_{th}$ is the threshold voltage of an enhancement type NMOS transistor, the conditions for transistor to be biased in saturation are

  1. $V_{gs}<V_{th};V_{ds}\geq V_{gs}-V_{th}$
  2. $V_{gs}>V_{th};V_{ds}\geq V_{gs}-V_{th}$
  3. $V_{gs}>V_{th};V_{ds}\leq V_{gs}-V_{th}$
  4. $V_{gs}<V_{th};V_{ds}\leq V_{gs}-V_{th}$
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