Question

A straight, infinite long conductor lies along the Y-axis and carries a steady electric current along the positive Y-direction. The direction of the magnetic field produced by the current at a point on the positive X-axis is along the
1)positive Z-direction
2)negative Z-direction<br
3)negative Y-direction
4)negative X-direction​

Answer 1

Negative Z- direction.

Answer 2

i thik 3) negative z- direction