For a uniformly charged ring of radius

PHYSICS · Single correct · AP · Physics C: Electricity and Magnetism · Electric Charges Fields and Gauss's Law · Electric Charges Fields and Gauss's Law

Problem

For a uniformly charged ring of radius RR, the electric field on its axis has the largest magnitude at a distance hh from its centre. Then value of hh is: (1) R5\frac{R}{\sqrt{5}} (2) R2\frac{R}{\sqrt{2}} (3) RR (4) R2R\sqrt{2}

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