How do i find direction in this question ???

Dear student,
the direction of magnetic field due to current carrying wire can be computed by right hand thumb rule.
By pointing your right hand thumb in the direction of current of wire, the direction in which the fingers are curling at the given point is the direction of magnetic field .
Here at (x,0,0) direction due to wire in y axis will be in      -z direction and by the wire in z axis it will be in +y direction. Try yourself and confirm it.
​​​​​​and reach again if you still have any doubts.
regards.

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