Question: Consider n equal positive point charges each of magnitude Q/n placed symmetrically around a circle of radius R. (a) Calculate the magnitude of the electric

Consider n equal positive point charges each of magnitude Q/n placed symmetrically around a circle of radius R.
(a) Calculate the magnitude of the electric field at a point a distance x on the line passing through the center of the circle and perpendicular to the plane of the circle.
(b) Explain why this result is identical to that of the calculation done in Example 23.8.

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