Two inductors $\mathrm{L}_1$ (inductance 1 mH , internal resistance $3 \Omega$ ) and $\mathrm{L}_2$ (inductance 2 ml internal resistance $4 \Omega$ ), and a resistor R (resistance $12 \Omega$ ) are all connected in parallel across a 5 V battery. The circuit is switched on at time $t=0$. The ratio of the maximum the minimum current ( $I_{\text {mass }} / I_{\min }$ ) drawn from the battery is