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Asked in GSEB Board March 2020 (old course) · Infinite sheet and sheet combinations
Given: side = 10 cm = 0.10 m, σ = 2 mC m⁻² = 2×10⁻³ C m⁻².
Idea: for a uniform surface charge, total charge = surface charge density × area.
Area A = (0.10)² = 1×10⁻² m²
Q = σ A = (2×10⁻³)(1×10⁻²) = 2×10⁻⁵ C
2×10⁻⁵ C = 20×10⁻⁶ C = 20 μC
So the total charge is 20 μC.
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