OUTLINE1. Maxwell’s prediction2. Basic characteristics of electromagnetic wavesDirections of E and BEnergy densities3. Intensity (Skip the Poynting vector, which is a useful quantity in complicated problems but is not needed for the problems of our interest.)http://www.walter-fendt.de/ph11e/emwave.htmDifferential equations from integral equations (standard method used in calculus)Maxwell’s conclusions1. Light must be an electromagnetic wave2. Prediction (1864) : if an electromagnetic wave can be produced, it should propagate at the speed of light. About 20 years later (1885 – 1889), Heinrich Hertz produced an electromagnetic wave and verified Maxwell’s prediction. The rest is a history.AntennasAll photos from
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