Defined as the time derivative of angular momentum, this quantity also equals the cross product of force and
With spin, this quantity names a transfer method for flipping the active elements of a magnetic random access memory system. When multiple coplanar forces act on a body, the algebraic sum of this quantity for each force was proven to equal the value of this quantity for the resultant vector by Varignon's theorem. The effect of this property on a magnetic field is predicted by the Landau-Lifshitz-Gilbert equation. For a (*) dipole in an electric field, this quantity equals the product of the electric field, the charge, the displacement, and sine of theta. Defined as the time derivative of angular momentum, this quantity also equals the cross product of force and 
With spin, this quantity names a transfer method for flipping the active elements of a magnetic random access memory system.
torque [or moment or "moment of Force"] 