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Transistors and Applications

Q1:

A source follower has a voltage gain (Av) of

A AV = gmRd

B AV = gmRS

C mca17_1012c1.gif

D mca17_1012d1.gif

ANS:C - mca17_1012c1.gif

Gm means transconductance and rs is source voltage.

Here for dc analysis we have short ckted the vdd suply so drain is grounded and automatically it is than common betn source and gate.



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