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Q#1 MOSFET GATE EE 2025 MCQ +2 marks -0.66 marks

In the circuit,  is an ideal current source. The transistors  and  are assumed to be biased in saturation, wherein  is the input signal and  is fixed DC voltage. Both transistors have a small signal resistance of  and trans-conductance of . The small signal output impedance of this circuit is

infinity

Explanation:

Transistors  and  are biased in saturation.

 

In AC analysis: (DC Supply) = Short Circuited

Current Source = Open circuited

 

Concept:

 

where

 

 

 

 

  

Option (c) is correct.

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EMFT EE 8 0 0
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