After conducting research, it has been found that there are various common causes of noise in electronics, particularly in charging adapters.

One of the main causes is electromagnetic interference (EMI) from other electronic devices, power sources, or radio waves. Other causes can include poor grounding, faulty components, or aging of the device.

As electronics age, the wear and tear on components can cause changes in the way they function, which may result in the appearance of noise or changes in the type of noise produced.
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