An electric charge in an accelerated motion produce:
Correct answer: D. All of the above
- A. An electric field only
- B. A magnetic field only
- C. Electromagnetic radiation only
- D. All of the above
Explanation
Accelerating charges produce changing electric and magnetic fields. Changing electric fields produce magnetic fields and changing magnetic fields produce electric fields. This interplay between induced electric and magnetic fields leads to propagating electromagnetic waves.
This question appeared on the ETEA MDCAT 2017 paper, which you can sit online with every answer explained.
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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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