The field can be represented by straight lines emanating from the conductor in a all directions.

The relationship between the current and the magnetic field can be expressed by the right-hand grip rule.

The direction of the magnetic field is tangential to a circle centered on the conductor and lying in a plane normal to its center line.

The direction of the magnetic field is parallel to the flow of current through the conductor

The direction of the magnetic field is tangential to a circle centered on the conductor and lying in a plane parallel to its center line.