The frequencies at which the current amplitude in an LCR series circuit becomes $\frac{1}{\sqrt{2}}$ times its maximum value, are $212 \mathrm{rad} \mathrm{s}^{-1}$ and $232 \mathrm{rad} \mathrm{s}^{01}$. The value of resistance in the circuit is $\mathrm{R}=5 \Omega$. The self inductance in the circuit is $\_\_\_\_$ mH .