Question: Two 10-cm-diameter charged disks face each other, 20 cm apart. The left disk is charged to -50 nC and the right disk is charged to

Two 10-cm-diameter charged disks face each other, 20 cm apart. The left disk is charged to -50 nC and the right disk is charged to +50 nC.
a. What is the electric field E, both magnitude and direction, at the midpoint between the two disks?
b. What is the force F on a -1.0 nC charge placed at the midpoint?

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