Electromagnetic waves are produced by:
Correct answer: A. Motion of electric and magnetic fields
- A. Motion of electric and magnetic fields
- B. Chargeless particles
- C. A static charge
- D. Heat
- E. None of the above
Explanation
Electromagnetic waves are the combination of electric and magnetic field waves produced by moving charges.The creation of all electromagnetic waves begins with a charged particle. This charged particle creates an electric field (which can exert a force on other nearby charged particles). When it accelerates as part of an oscillatory motion, the charged particle creates ripples, or oscillations, in its electric field, and also produces a magnetic field (as predicted by Maxwell's equation).
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About Electromagnetic Waves
Electromagnetic waves consist of mutually perpendicular, oscillating electric and magnetic fields that also remain perpendicular to the direction of propagation. They travel through vacuum at the speed of light and include radio waves, microwaves, infrared, visible, ultraviolet, X-rays and gamma rays. Unlike mechanical waves, they do not require a material medium.
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