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15 October, 13:29

C. How is EM created?

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Answers (2)
  1. 15 October, 14:34
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    Electromagnetic waves are formed when an electric couples with a magnetic field Magnetic and electric fields of an electromagnetic wave are perpendicular to each other and to the direction of the wave.
  2. 15 October, 15:55
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    EM is created by moving charges back and forth will produce oscillating electric and magnetic fields, and these travel at the speed of light
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