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Five point charges, each of value +q cou...

Five point charges, each of value +q coulomb, are placed on five vertices of a regular hexagon of side L meters. The magnitude of the force on the point charge of value -q coulomb, placed at the centre of the hexagon is…………….

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The forces due to the charges placed diagonally opposite at the vertices of hexagon, on the charge –q cancel in pairs. Hence net force is due to one charge only.
Net force, `|vec(F)|=(1)/( 4 pi epsilon_(0))(q^(2))/(l^(2))`
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