Electric field intensity due to infinite sheet of charge Ïƒ is

Electronics and Communication Engineering (ECE) : Electromagnetic Field Theory - Quiz(MCQ)

Zero

Unity

Ïƒ/Îµ

Ïƒ/2Îµ

Correct Answer : Option (D) : Ïƒ/2Îµ

Explanation : E = σ/2ε.(1- cos α), where α = h/(√(h²+a²))
Here, h is the distance of the sheet from point P and a is the radius of the sheet. For infinite sheet, α = 90. Thus E = σ/2ε.

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