A parallel-plate capacitor has each plate with a surface area of 12.5cm^2, separated by a distance of 0.270mm. The volume between the plates is vacuum, and a battery of EMF 240 volts is connected across the capacitor plates. Find:
a. The capacitance:
b. The charge on each plate:
c. The total electric field between the plates:
d. The total energy stored in the capacitor: