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प्रश्न
An electromagnetic wave is produced by a charge ______.
विकल्प
moving with a constant velocity.
moving with a constant speed parallel to a magnetic field.
moving with acceleration.
at rest.
MCQ
रिक्त स्थान भरें
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उत्तर
An electromagnetic wave is produced by a charge moving with acceleration.
Explanation:
When electric charges are accelerated, electromagnetic waves are created. This enables the generation of electromagnetic waves by passing an alternating current via a wire, which serves as an antenna. The frequency of the waves produced in this manner equals that of the alternating current.
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