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A charged wire of negligible thickness has length 2L units and has a linear charge density ?. Consider the electric field E? at the point P, a distance d above the midpoint of the wire.

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asked 2021-04-27
A charged wire of negligible thickness has length 2L units and has a linear charge density ?. Consider the electric field E? at the point P, a distance d above the midpoint of the wire.
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Answers (1)

2021-04-29
Note that the fields along x cancel because of symmetry.
Thus, as it is positively charged, it points away from the line of charge.
Thus, E points towards the positive y axis.
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