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Question 31413
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Electrostatics: Electric Field MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Electric FieldHardQuestion 31413

Question

A uniformly charged ring (charge Q, radius R) — field at centre is:
  1. A
    kQ/R²
  2. B
    kQ/R
  3. C
    Zero
    Correct
  4. D
    kQ/(2R²)

Correct answer

Zero

Explanation

By symmetry, every element contributes a field that is exactly cancelled by the diametrically opposite element. Net E = 0 at centre.

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