Electromagnetic waves are produced by

Electromagnetic waves are produced by
  1. charges at rest only
  2. changes in uniform motion only
  3. accelerated or decelerated charges only
  4. an uncharged stable particle at rest

Solution

When a charge moves with acceleration, then it produces a time varying electric and magnetic field. Hence, electromagnetic waves are produced by accelerated or deaccelerated charges only.

Asked in: AP EAMCET 2020 (18 Sep Shift 2)

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