A field line and an equipotential surface are____________?
Correct answer: B. always at 90°
- A. always parallel
- B. always at 90°
- C. inclined at any angle 0
- D. none of the above
Explanation
The electric field points in the direction of greatest potential decrease, while an equipotential surface has no potential change along it. Therefore, field lines meet equipotential surfaces normally, at 90°.
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