[填空题]
How much energy must a 45-V batt74igr 3y kqgw*+0ddtkery expend tm8ylltm--l*l5 h7i iho charge a $0.40-\mu F$ and a $0.60-\mu F$ capacitor fully when they are placed
(a) in parallel, $ \times10^{-3 }\;J$
(b) in series? $ \times10^{-4 }\;J$
(c) How much charge flowed from the battery in each case?
$Q_a$ $\mu C$
$Q_b$ $\approx$ $\mu C$(Round to the nearest integer)
