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JEE Main 2019
9-01-2019 S1
Question
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 :
Select the correct option:
A
$\frac{\mathrm{R}}{\sqrt{2}}$
B
$\frac{\mathrm{R}}{\sqrt{5}}$
C
R
D
$\mathrm{R} \sqrt{2}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Physics
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