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[" For a uniformly charged ring of radiu...

[" For a uniformly charged ring of radius "R," the electric field on its axis has "],[" the largest magnitude at a distance "h" from its centre.Then,value of "h" is "],[[" (A) "(R)/(sqrt(2))," (B) "R sqrt(2)," (C) "R," (D) "(R)/(sqrt(5))]]

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