The Plates of a Parallel Plate Capacitor Each Have an Area

Multiple Choice

The plates of a parallel plate capacitor each have an area of 0.40 m² and are separated by a distance of 0.02 m. They are charged until the potential difference between the plates is 3000 V. The charged capacitor is then isolated.
-Determine the magnitude of the electric field between the capacitor plates.

A) 60 V/m
B) 120 V/m
C) 1.0 × 10⁵ V/m
D) 1.5 × 10⁵ V/m
E) 3.0 × 10⁵ V/m