Answer Happy

The following amplifier consists of two JFETs in cascade. Fromthe manufacturer's specifications and the DC analysis, it is knownthat the transconductance for each at its point of operation is gm1= gm2 = 2 mS. Also, the output resistance of each transistor is rd= 100 kΩ.
From the above data:a) Determine the small-signal equivalent circuit (withoutperformingsimplifications)Simplify the small-signal circuit by paralleling resistorsconveniently and determine:b) The input impedance.c) The output impedance.d) The voltage gain Av if RL = ∞.e) The voltage gain Av, when RL = 5 kΩ.
Vin Zin -1₁ 1 µF C₁ RDi 5 30 ΚΩ 31 ΜΩ 41₁ O S 1 μF HE Co 100 µF 470 R$1 CS1 + 20 V 1 ΜΩ RD23 D S >12 ΚΩ C216 HI 1 μF 470 R $2 CS2 Ω Zout 100 μF + RL Vo