1.

Two small balls having equal positive charge QC on each are suspended by two insulating strings of equal length L metre, from a hook fixed to a stand. The whole setup is taken into space where there is no gravity (state of weightlessness). Then the tension in the string is

Answer»

`(1)/(4pi epsi_(0))(q^(2))/(4L^(2))`
`(1)/(4pi epsi_(0))(q^(2))/(L^(2))`
`(1)/(4pi epsi_(0)) (sqrt2q^(2))/(L^(2))`
`(1)/(4pi epsi_(0))(q^(2))/(2L^(2))`

ANSWER :A


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