Problem 4.104

An oscillating circuit consists of a capacitor with capacitance $C=4.0 \mu \mathrm{F}$ and a coil with inductance $L=2.0 \mathrm{mH}$ and active resistance $R=10 \Omega$. Find the ratio of the energy of the coil's magnetic field to that of the capacitor's electric field at the moment when the current has the maximum value.