A long string with a charge of lambda pe...

A long string with a charge of `lambda` per unit length passes through an imaginary cube of edge `a`. The maximum flux of the electric field through the cube will be

`lambdaa//epsilon_(0)`

`sqrt(2)lambdaa//epsilon_(0)`

`6lambdaa^(2)//epsilon_(0)`

`sqrt(3)lambda//epsilon_(0)`

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