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AP Physics C: E&M
8.6 Gauss’s Law
8.4 Electric Fields of Charge Distributions
BeginnerMCQMathematical21.1k
A vertical dashed line representing a thin straight wire is centered on the canvas, marked with positive sign symbols along its length. A perpendicular horizontal line segment extends to the right from the wire, ending at a point labeled P. The horizontal segment is labeled r = 0.10 m. An arrow labeled E points horizontally to the right from point P. No other labels, lines, text, or axes appear.
A thin line of charge and a point P at radial distance r.
A high-voltage sense wire in a particle detector is modeled as a thin, infinitely long straight wire carrying a uniform linear charge density \(\lambda = 4.0 \text{ nC/m}\). What is the magnitude of the electric field at a radial distance of \(r = 0.10 \text{ m}\) from the center of the wire?

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