Saturday 3 December 2016

specific reference - How does an electromagnetic wave really look?


enter image description here


In the physical reality, where is the electric field and magnetic field? Do they go up to infinity from the x-axis?


The picture uses vectors to depict the magnitude and direction of the field but we know that a vector can describe a property at just one point. What about other points?


In other words, I am asking what happens if I keep a super tiny compass at the points A, B, C in the above diagram.


*looking for good reference to understand electromagnetic waves (with derivations) with lot of illustrations




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