In series R-L circuit, voltage of battery is $\mathbf { 1 0 ~ V }$. Resistance and inductance are $\mathbf { 1 0 } \boldsymbol { \Omega }$ and $\mathbf { 1 0 } \mathbf { ~ m H }$ respectively. Find energy stored in the inductor when current reache $\frac { 1 } { e }$ times of maximum value.
(A) 0.33 mJ
(B) 1.33 mJ
(C) 0.67 mJ
(D) 2.33 mJ