Question regarding NMOS and ouput

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Hellsin

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Can any pro out there please guide me to the answer for A and B ?

Thank you very much
 

How much is the threshold voltage?(that is Vt)?
And are both the transistors in saturation/cut off/triode mode of operation?Please specify......
 

Let say the threshold voltage is 0.7V
both trans are in saturation mode
what will be it ?
 

Ok...for saturation mode,equation is..
Vds=Vgs-Vt
0.7-Vs=0.7-Vs-0.7...and solving..
Vs will cancel out...looks like it cannot be solved...or maybe I am wrong.
Are you sure that the drain voltage and the gate voltage is 0.7V..??check again the figure..there could be some mistake(s).
 


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