a uniform electric field, with a magnitude of 4 n/c, points in the positive x direction. when a charge is placed at the origin, the resulting electric field on the x axis at x = 2 m becomes zero. with the charge still at the origin, what is the magnitude of the electric field at x = +4 m?
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a uniform electric field, with a magnitude of 4 n/c, points in the positive x direction. when a char...
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