3 infinitely long wire each carrying current I are placed in x-y plane at x= 0, d and -d distances. The magnetic field vanishes at ?
1
\(x= \pm \sqrt{3} d \)
2
\(x= \pm \frac{d}{2} \)
3
\(x= \pm \frac{d}{\sqrt{3}} \)
4
\(x= \pm \frac{d}{3 \sqrt{3}} \)