Magnetic field direction created by rectangular circuit

[yvesers]

Hey guys, this is just a conceptual question so i don't think the scheme applies? I've got a circuit with a potential difference, when I use the right hand rule to determine the direction of the magnetic field created by the wire of any side of the rectangle, do I point my thumb (direction of current) from the positive to negative terminal like the convention tells us to do, or do I use the direction of the current flowing from the negative to the positive terminal? I would very much appreciate someone shedding light on this.

Thanks,
Yves.

 

[Mauvai]

thumb goes in the direction of conventional current, ie in the direction a positive charge would go, so from positive to negative