Calculate the electric field intensity at a point just near the surface of a charged plane sheet, measured from its mid-point. [\(\sigma\) = 8.85 \(\mu\)C/m\(^2\)]

Q.2 (vii) Calculate the electric field intensity at a point just near the surface of a charged plane sheet, measured from its mid-point. [\(\sigma\) = 8.85 \(\mu\)C/m\(^2\)]

Doubtly Asked 28 Oct 2026 Board exam · March 2025 hsc 12th Save WhatsApp Report

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Answer: \(E = 5 \times 10^5\) N/C

For an infinite plane sheet of charge,

\[E = \frac{\sigma}{2\varepsilon_0} = \frac{8.85 \times 10^{-6}}{2 \times 8.85 \times 10^{-12}} = 5 \times 10^5 \text{ N/C}\]

directed normally away from the sheet (for positive charge).

Doubtly AI · 28 Oct 2026 AI-verified · Oct 2026 Report

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Calculate the electric field intensity at a point just near the surface of a charged plane sheet, measured from its mid-point. [\(\sigma\) = 8.85 \(\mu\)C/m\(^2\)]

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