An oscillating LC circuit has inductance L and capacitance C$.$ The maximum charge on the capacitor during oscillations is qmax.

$$ Part $($a$)$

Enter an expression for the charge on the capacitor, when energy is shared equally between the electric field in the capacitor and the magnetic field in the inductor. Form your expression in terms of qmax.

$$ Part $($b$)$

Using the value qmax $=7$ nC$,$ find the charge on the capacitor, in nanocoulombs, when energy is shared equally between the electric field in the capacitor and the magnetic field in the inductor. Be careful with your charge units.

$$ Part $($c$)$

Enter an expression for the current through the inductor, when energy is shared equally between the electric field in the capacitor and the magnetic field in the inductor. Form your expression in terms of the inductance, L$,$ the capacitance, C$,$ and qmax.

$$ Part $($d$)$

Given the values qmax $=7$ nC$,$ L $=18$ mH$,$ and C $=1\mathrm{.}1$ F$,$ find the current through the inductor, in amperes, when energy is shared equally between the electric field in the capacitor and the magnetic field in the inductor.