A $25-$mH inductor, an

$8\mathrm{.}08\mathrm{.}0$

resistor, and a $6\mathrm{.}0$ V battery are connected in series. The switch is closed at t$=0.$ Find the voltage drop across the resistor $($a$)$ at t$=0$ and $($b$)$ after one time constant has passed. Also, find the voltage drop across the inductor $($c$)$ at t$=0$ and $($d$)$ after one time constant has elapsed.$$

Answer: $($a$)0,($b$)3\mathrm{.}8$ V$,($c$)6\mathrm{.}0$ V $($d$)2\mathrm{.}2$ V$$