Q$2)(2$p$)$

Z$\_$bd $=7V($Breakdown voltage of Zener diode$)$

Df $=0\mathrm{.}7V($Forward voltage of $1$ N $4148)$

Find the nodal voltages of node $A,B,$ and C $.$

Discuss how the following nodal voltages change with the resistor values:

V$\_$A with respect to R$1$

V$\_$B with respect to R$2$

$V_{-}C$ with respect to R$3$

$($Provide comments on the impact of increasing or decreasing each resistor value on the corresponding nodal voltage.$)$