![]() ![]() at the radio station are converted into electromagnetic waves, then encoded and transmitted in the radio-frequency by: 1. A radio works because sound waves played by the D.J. EM waves don’t need a medium in which to propagate they can travel through a vacuum, such as outer space.If the frequency of oscillation of the charged particle is f, then it produces an electromagnetic wave with frequency f. ![]() An accelerating charged particle is when the charged particle oscillates about an equilibrium position. ![]() All electromagnetic waves travel at the same speed -, metres per second, which is the speed of light.Įlectromagnetic waves are nothing but electric and magnetic fields travelling through free space with the speed of light c. This means that although they appear to be very different, in fact they're all made of the same kind of vibrations - but at different. the order they fit into the electromagnetic spectrum All of these are "electromagnetic waves". Presented in two parts, this book takes an analytical approach on the subject and emphasizes new ideas and applications used today.
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