Respuesta :
Answer:
The correct Option is D
Explanation:
Direct current do not generate electromagnetic waves because it does not have the attributes of electromagnetic wave especially the fact that every electromagnetic wave do alternate with time causing wave to be propagated but a direction current do not alternate with time
The answer option which will not generate electromagnetic waves or pulses is: (D) a direct current.
An electromagnetic wave can be defined as a type of wave that doesn't require a medium for its propagation and as such it can travel through an empty space or vacuum.
In Science, some of the ways to generate electromagnetic waves or pulses include the following:
- An alternating current (AC).
- An accelerating electron.
- A proton in simple harmonic motion.
- Charged particles that are experiencing centripetal acceleration in a mass spectrometer .
However, a steady direct current (DC) will not generate electromagnetic waves or pulses because it's motion is constant.
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