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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §15.1 Vector Fields, #26 · Multivariable Calculus · Vector calculus

A line of charges produces the electrostatic force field

A line of charges produces the electrostatic force field $F = R / r^{2} = (x i + y j) / (x^{2} + y^{2})$ . Find the potential $f (x, y)$ . ( $F$ is also the gravity field for a line of masses.)

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §15.1 Vector Fields, #26

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