The word "electromagnetic" comes from the fact that the The electric field and the magnetic field cannot be separated. If the laws of physics are the same in every inertial frame of reference (Inertia frame of reference) changes in a magnetic field.(called electromagnetic induction. This phenomenon is the basis of the generator and the electric motor.) on the other hand, the changes of electric field, magnetic field, causing
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.Since both pitch can't be separated. It should be combined into one. James Clerk Maxwell is the electric field and magnetic field together with mathematical equations. Only four equations. "Cause the development of physics in the century 19 greatly, and leads to the understanding of the subject. For example, the light that explain a quiver of electromagnetic wave spread spread out.Vibrational frequencies of different causes, such as electromagnetic radiation of different wave caused by low frequency electromagnetic wave radio Visible light caused by medium frequency electromagnetic wave
electromagnetic theory is an important cause. The special theory of relativity of Albert Einstein in 1999. 1905.
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