Two point charges are separated by 12.0 cm and have charges of +5.00 µC and −5.00 µC,respectively.What is the electric field at a point midway between the two charges? (k_e = 8.99 × 10⁹ N·m²/C²)

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Quizplus · Accepted Answer

The electric field due to each charge at the midpoint is equal in magnitude but opposite in direction. The magnitude of the electric field due to one charge is E = k_e * |q| / (r/2)^2 = (8.99 × 10^9 N·m²/C² * 5.00 × 10^-6 C) / (0.06 m)^2 = 1.25 × 10^7 N/C. Since the fields are in the same direction (towards the negative charge), they add up to 2.5 × 10^7 N/C.

Two Point Charges Are Separated by 12