3- Draw the ac equivalent circuit of the
network and derive an expression for the input
impedance, output impedance and
the gain of the self-bias JFET
configuration shown for $r_d = R_D$
$V_{DD}$
$R_D$
$C_1$
$C_2$
$V_i$
$G$
$D$
$S$
$V_o$
$Z_i$
$Z_o$
$R_G$
$R_S$