A parallel-plate capacitor has a plate area of 0.2 m^2 and a plate separation of 0.1 mm. If the charge on each plate has a magnitude of 4 × 10^-6 C the potential difference across the plates is approximately:
A) 0
B) 4 × 10-2 V
C) 1 × 102 V
D) 2 × 102 V
E) 4 × 108 V