A current moves from west to east in a conductor. The magnetic field direction at a position above the conductor is ___________.

According to the right-hand thumb rule, if a current-carrying conductor is believed to be held in the right hand with the thumb pointing in the direction of the current, then the curled fingers indicate the magnetic field direction.

If the thumb is pointing west-east, then the magnetic field will be directed above the conductor, towards the south, according to the right-hand rule.

As a result, option 2 is the correct answer.