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3 November, 05:32

What surface charge density on an infinite sheet will produce an electric field of 1.4 kN/C? Express your answer in coulombs per meter squared.

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  1. 3 November, 07:01
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    Answer: σ = 2.47 * 10^-8 q/m²

    Explanation: The electric field intensity and surface charge density for an infinite sheet is given as

    E = σ/2ε₀

    Where E = 1.4KN/c = 1400 N/c

    ε₀ = permittivity of free space = 8.85*10^-12

    σ = surface charge density

    1400 = σ/2*8.85*10^-12

    σ = 1400 * 2 * 8.85*10^-12

    σ = 24780*10^-12

    σ = 2.47 * 10^-8 q/m²
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