Right-hand rule

Mnemonic for 3D vectors orientations and rotations

In mathematics and physics, the right-hand rule is a convention and a mnemonic utilized to define the orientation of axes in three-dimensional space and to determine the direction of the cross product of two vectors, as well as to establish the direction of the force on a current-carrying conductor in a magnetic field. The various right- and left-hand rules arise from the fact that the three axes of three-dimensional space have two possible orientations. This can be seen by holding your hands together with palms up and fingers curled.

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