JUST NEED $($B$)$

The switch in the figure below is open for

t $<mtext></mtext><mn>0</mn>$

and is then thrown closed at time

t $=0.$

Assume

R $=5\mathrm{.}00\backslash$Omega $,$

L $=3\mathrm{.}00$ H$,$

and

e m f $=18\mathrm{.}0$ V$.$

Find the following as functions of time thereafter. $($Do not enter units in your answers. Assume current is in A and time is in s$.$ Use the following as necessary: t$.)$

Two adjacent rectangular loops, one to the left of the other, form a circuit. The left side of the left loop contains a battery of emf $,$ for which the positive terminal is above the negative terminal. The top side of the left loop contains a resistor R$,$ and the top side of the right loop contains a resistor $2$R$.$ The right side of the right loop contains an inductor L$.$ The bottom side of the left loop contains an open switch S$.$ The right side of the left loop, which is the left side of the right loop, contains another resistor R$.$

$($b$)$ the current in the switch

i$1=$