Part $1($Weeks $1-4$ content; $60$ marks$)$

Q$1.$ Refer to the circuit shown in Figure Q$1.$

$($a$)$ Use nodal analysis to calculate $\backslash ($ v$\_\{$x$\}\backslash )$ as indicated in the circuit.

$[12$ marks$]$

$($b$)$ Employ superposition to determine the value of $\backslash ($ v$\_\{$x$\}\backslash )$ caused by the $5$ V voltage source alone.

$[8$ marks$]$