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$1.$ The charge, $q(t),$ flowing in a wire is shown in Fig$\mathrm{.}1.$ Compute and sketch the corresponding current,B i $($t$).$

$2.$ For the circuit shown in Fig$\mathrm{.}2$ compute Vx$,$ I, the Power $,$P$,$ supplied by the voltage source

$3.$ The time domain circuit shown in Fig. $3$ is in the steady state $($operating for t$>>>0$s$).$ With I$($t$)$ shown,

$($i$)$ Draw the phasor circuit with all parameter values labelled on it$.$

$($ii$)$ Compute i$(t)$ as a function of time.

$4.$ An AC$.$ phasor circuit is shown in Fig$\mathrm{.}4.$ All impedances are In Ohms. Compule$($i$)V_1,V_2$ and $I_x.($ii$)$ Complete S$=$P$+$jQ supplied by the force