♣Electromagnetic waves are produced when something vibrates—an electric charge that moves back and forth. When an electric charge vibrates, the electric field around it changes. Because the electric charge is in motion, it also has a magnetic field around it.♣
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♣Electromagnetic waves are produced when something vibrates—an electric charge that moves back and forth. When an electric charge vibrates, the electric field around it changes. Because the electric charge is in motion, it also has a magnetic field around it.♣