For two equal positive charges, the electric field is weakest:
- A. Midway between them
- B. Along the perpendicular bisector
- C. Close to either charge
- D. At infinity
Explanation
At the midpoint the two fields are equal in magnitude and opposite in direction, so they cancel exactly and the resultant is zero, which is the weakest the field can be anywhere at finite distance. Close to either charge the field is strongest. The field also tends to zero at infinity, but the question is asking for the null point produced by the pair.
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