An Electric Field Is Set Up Between Two Parallel Plates

Multiple Choice

An electric field is set up between two parallel plates, each of area 2.0 m², by putting 1.0 μC charge on one plate and a -1.0 μC charge on the other. The plates are separated by 4.0 mm. What is the magnitude of the electric field between the plates at a distance of 1.0 mm from the positive plate?

A) 4.2 × 10⁴ N/C
B) 1.4 × 10⁴ N/C
C) 3.1 × 10⁴ N/C
D) 0 N/C
E) 5.6 × 10⁴ N/C