right hand rule


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right hand rule

(1) used to relate direction of rotation of an object to its vector representation: if the right hand is 'wrapped' from palm to tips of fingers in the direction of rotation, the vector lies in the direction of the outstretched thumb of the right hand (e.g. vector representation of angular momentum); (2) the organization of a three-dimensional cartesian co-ordinate system. X direction can be considered as acting along the outstretched first finger of the right hand, Y direction is along the outstretched second (middle) finger of the right hand (at right angles to the first finger) and Z is along the outstretched thumb (at right angles to the other two) of the right hand.
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