Momentum Density -- from Eric Weisstein's World of Physics

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Momentum Density

The momentum density of an electromagnetic wave is given in cgs by

where c is the speed of light, E is the electric field, B is the magnetic field, and S is the Poynting vector.

Angular Momentum Density, Conservation of Momentum, Energy Density, Momentum, Poynting Vector

© 1996-2007 Eric W. Weisstein