Answer
We can match the values with the curves:
(1) c
(2) a
(3) d
(4) b
Work Step by Step
We can use Equation (30-45) to write an expression for the current:
$i = \frac{\mathscr{E}}{R}~e^{-tR/L}$
When $t = 0$, then $i = \frac{\mathscr{E}}{R}$
Curve c and Curve d correspond to a lower value of $R$ which is $R_0$
Curve a and Curve b correspond to a higher value of $R$ which is $2R_0$
If $L$ has a higher value, then the value of $i$ decays more slowly.
Curve b and Curve d correspond to a higher value of $L$ which is $2L_0$
Curve a and Curve c correspond to a lower value of $L$ which is $L_0$
We can match the values with the curves:
(1) c
(2) a
(3) d
(4) b