Two 10-cm-diameter charged rings face each other, 29 cm apart. The left ring is charged to -27 nC and the right ring is charged to +27 nC .
Part A. What is the magnitude of the electric field E→ at the midpoint between the two rings? Express your answer to two significant figures and include the appropriate units.
Part B. What is the direction of the electric field E→ at the midpoint between the two rings?
Part C. What is the magnitude of the force F→ on a -1.0 nC charge placed at the midpoint? Express your answer to two significant figures and include the appropriate units.
Part D. What is the direction of the force F→ on a -1.0 nC charge placed at the midpoint?