Asked by David D.

Two 10 cm diameter charged rings face each other, 20 cm apart. The left ring is charged to -20 nC and the right ring is charged to +20 nC.
Answered by drwls
You have not said what the question is, but if you want the force between them, use Coulomb's Law.
Answered by David D.
Sorry
What is the force Fvec on a 1.2 nC charge placed at the midpoint?
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