Two long current carrying thin wires, both with current $I$, are held by insulating threads oflength $L$ and are in equilibrium as shown in the figure, with threads making an angle '$\theta$' with the vertical. If wires have mass $\lambda$ per unit length then the value of $l$ is 
($g =$ gravitational acceleration)

131-243

  • [JEE MAIN 2015]
  • A

    $2$$sin$$\theta \sqrt {\frac{{\pi \lambda gL}}{{{\mu _0}cos\theta }}} \;\;\;\;\;\;\;\;$

  • B

    $2$$\sqrt {\frac{{\pi gL}}{{{\mu _0}}}tan\theta } $

  • C

    $\;\sqrt {\frac{{\pi \lambda gL}}{{{\mu _0}}}tan\theta } $

  • D

    $sin$$\theta \sqrt {\frac{{\pi \lambda gL}}{{{\mu _0}cos\theta }}} $

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