A (7.90-μ F) and a (4.00-μ F) capacitor are connected in series across a (24.0-V) battery. What voltage is required to charge a parallel combination of the two capacitors to the same total energy? Numbe
a) (42.4 V)
b) (34.6 V)
c) (28.1 V)
d) (19.7 V)