In an oscillating LC circuit, L$=2\mathrm{.}7$ mH and C$=27$ micro F $.$ At A$=0$ the charge on the capacitor is zero and the current is $2\mathrm{.}0$ A$.($a$)$ What is the maximum charge that will appear on the capacitor? $($b$)$ At what earliest time t $>0$ becomes the energy stored in the inductor greatest?