Current flowing in 2 adjacent conductors in same direction and opposite direction

When current flows in the conductor it produces magnetic field. This is explained by Flemming's Right Hand Thumb Rule. When current flows in the direction of right hand thumb. Magnetic field will be produced around the conductor in the direction of other figures as shown in fugure

Consider two conductors carrying current in the same direction "+" sign represents current flowing into the plane and "." sign represents current flowing out of the plane

When current flowing in the same direction in the two adjacent conductors magnetic filed will be produced in such a manner that they attract each other

On the other hand, when current flowing in opposite direction in two adjacent conductors magnetic field will establish in such a manner such that both the conductors repel each other