A changing magnetic field always produces an electric field, and conversely, a changing electric field always produces a magnetic field. This interaction of electric and magnetic forces gives rise to a condition in space known as an electromagnetic field. The characteristics of an electromagnetic field are expressed mathematically by Maxwell's equations. See also: Electric field; Electromagnetic radiation; Electromagnetic wave; Maxwell's equations
Beams, Jesse W. Formerly, Department of Physics, University of Virginia, Charlottesville, Virginia.
- J. M. Jin, Theory and Computation of Electromagnetic Fields, John Wiley & Sons, Hoboken, NJ, 2010
- Y. Singh, Electro Magnetic Field Theory, Pearson Education, New Delhi, India, 2011
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