Electromagnetics is just like acoustics
Whenever you generate a flow of charges, the disturbances radiate outward, just like sound propagates outward. By keeping the amplitude low, we limit it's reach, so that the message fades out as noise.
Whenever you generate a flow of charges, the disturbances radiate outward, just like sound propagates outward. By keeping the amplitude low, we limit it's reach, so that the message fades out as noise.