1.

Three point charges, each with charge q and mass 'm', are connected by three strings of equal length 'e whose other end is connected to a fixed point P. They form an equilateral triangle of side 'a' in a horizontal plane. The tension in each string will be

Answer»

`sqrt((mg)^2-(q^2/(4piepsilon_0a^2)SQRT3)^2)`
`(mgl)/sqrt(l^2-a^2//3)`
`(3q^2)/(4piepsilon_0a^2)`
none of the above

ANSWER :B


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