Two identical FETs, each characterized by the parameters g_m and r_d are connected in parallel .The composite FET is then characterized by the parameters_____________(a) gm/2 and 2rd(b) gm/2 and 2rd(c) 2gm and rd/2(d) 2gm and rd/2The question was posed to me during an interview.My question is taken from The Junction Field-Effect Transistor in division Field-Effect Transistors of Electronic Devices & Circuits

Two identical FETs, each characterized by the parameters g_m and r_d a

1.	Two identical FETs, each characterized by the parameters g_m and r_d are connected in parallel .The composite FET is then characterized by the parameters_____________(a) gm/2 and 2rd(b) gm/2 and 2rd(c) 2gm and rd/2(d) 2gm and rd/2The question was posed to me during an interview.My question is taken from The Junction Field-Effect Transistor in division Field-Effect Transistors of Electronic Devices & Circuits
Answer» The correct choice is (C) 2GM and rd/2 Best explanation: By CONVERTING FET into ac EQUIVALENT circuits and CONNECTING them in parallel, gn = 2gmandrn = rd/2.

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