Two parallel circular disks are separated by a distance of 1.0 mm. The diameter of each disk is 2.0 cm. One of the disks carries a net charge of 10 nC, and the other has a charge of −10 nC. What is the electric field strength between the disks?
A) 2.8×103 N/C
B) 5.6×103 N/C
C) 8.4×103 N/C
D) 1.1×104 N/C