Introduction to Electrodynamics · Problem 3.33

Potentials — David J. Griffiths

Physics · electric-field-dipole

Problem

A "pure" dipole p\mathbf{p} is situated at the origin, pointing in the zz direction. (a) What is the force on a point charge qq at (a,0,0)(a, 0, 0) (Cartesian coordinates)? (b) What is the force on qq at (0,0,a)(0, 0, a)? (c) How much work does it take to move qq from (a,0,0)(a, 0, 0) to (0,0,a)(0, 0, a)?

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