The figure shows four situations in which four very long rods extend into and ou

Question

The figure shows four situations in which four very long rods extend into and out of the page (we see only their cross sections). The value below each cross section gives that particular rod?s uniform charge density in microcoulombs per meter. The rods are separated by either d or 2d as drawn, and a central point is shown midway between the inner rods. Rank the situations according to the magnitude of the net electric field at that central point, greatest first. a=b>c=d c>b>d>a O a>c>b=d

Explanation / Answer

answer is

a >c >b=d

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