For a uniformly charged ring of radius \( \mathrm{R} \), the electr...

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For a uniformly charged ring of radius \( \mathrm{R} \), the electric field on its axis has the largest magnitude at a distance
P \( \mathrm{h} \) from its centre. Then value of \( \mathrm{h} \) is :

W
[JEE Main - 2019 (January)]
(1) \( \frac{R}{\sqrt{5}} \)
(2) \( \frac{R}{\sqrt{2}} \)
(3) \( R \)
(4) \( R \sqrt{2} \)
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