For equal charges of value +Q are place...

For equal charges of value +Q are placed at any four vertices of a regular hexagon of side a. By suitably choosing the vertices, what can be the maximum possible magnitude of electric field at the centre of the hexagon?

`Q/(4 pi epsilon_(0)a^(2))`

`(sqrt(2)Q)/(4piepsilon_(0)a^(2))`

`(sqrt(3)Q)/(4piepsilon_(0)a^(2))`

`(2Q)/(4piepsilon_(0)a^(2))`

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