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Question 31419
JEE Physics · Hard

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 31419

Question

Surface charge density σ on an infinite plane gives electric field:
  1. A
    σ/ε₀
  2. B
    σ/(2ε₀)
    Correct
  3. C
    2σ/ε₀
  4. D
    σε₀

Correct answer

σ/(2ε₀)

Explanation

Infinite plane with surface charge σ: E = σ/(2ε₀) on each side, perpendicular to the surface. Between two plates of opposite σ: E = σ/ε₀.

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