Question $2$

$2.$ Consider the circuit shown in Figure $2\mathrm{.}1.$

$($a$)$ For the circuit shown in Figure $2\mathrm{.}1,$ reduce the circuit to a Th$$venin equivalent circuit between the terminals $\backslash (\backslash$boldsymbol$\{$a$\}\backslash )$ and $\backslash (\backslash$boldsymbol$\{$b$\}\backslash ),$ by finding both the Th$$venin open circuit voltage and Th$$venin equivalent resistance.