The maximum electric field intensity on ...

The maximum electric field intensity on the axis of a uniformly charged ring of charge q and radius R will be

`1/4πepsilon_0 q/3sqrt(2)R^2`

`1/4πepsilon_0 2q/3R^2`

`1/4πepsilon_0 q/3sqrt(3)R^2`

`1/4πepsilon_0 2q/3sqrt(3)R^2`

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