A question that is about the bias of a NMOS transistor

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davison7

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Hello everybody,

I have a question that is about the bias of a NMOS transistor described in next line.
Why does the drain-source voltage become larger if chosen to the longer gate lengths ?
 

on comparing mosfet lenghthwise, it acts as a voltage divider. so as the length increases voltage also increases. Thats why vds increases with L.
 

Because the gm of the transistor decreases ;-)
 

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