1.

Identical charges of magnitude Q are placed at (n-1) corners of a regular polygon of n sides each corner of the polygon is at a distance r from the centre. The field at the centre is

Answer»

`(kQ)/(R^(2))`
`(n-1)(kQ)/(r^(2))`
`n/((n-1)).(kQ)/(r^(2))`
`((n-1))/n K Q/(r^(2))`

Solution :(a)


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