An infinitely large non conducting plane sheet of charge density sigma has a circular aperture of certain radius carved out of it the electric field at a point which is at distance r from the centre of aperture is sigma bond and not ready for that person is
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Answer: r = a
Remark, Question is the relation between r and a.
If effective electric field intensity given.
Explanation: σ/2ε
Electric field intensity at a distance r.
σ/2ε*
Carved portion removed,
Hence, replace σ = -σ.
-σ/2ε*.
Effective electric intensity.
σ/2ε+-σ/2ε*
σr* = σ/2ε*()
r= a.
Hope it helps
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