Sound requires a medium to travel through, such as air, water, or solid materials. In a vacuum, where there is no medium, sound cannot propagate. Therefore, sound does not travel at all in a vacuum, and there is no speed associated with it in that context.
As for the speed limit of sound traveling through electrical devices, it depends on the specific device and the medium through which the sound is propagating. In general, sound travels at different speeds in different materials. For example, in air at room temperature, sound travels at approximately 343 meters per second (about 1,125 feet per second).
When it comes to electrical devices, the speed of sound depends on the characteristics of the material or medium in which the sound is propagating. For instance, in solid materials such as metals, the speed of sound is usually higher than in air. The exact speed will vary depending on the properties of the material.
In the case of electrical devices, sound can travel through various components and materials like wires, circuit boards, or enclosures. The speed of sound within these materials will depend on their composition and structure. It is typically similar to or slightly higher than the speed of sound in air.
However, it's important to note that sound is not the primary form of information transmission in electrical devices. Electronic signals, which are usually electrical currents or electromagnetic waves, are the predominant means of communication within such devices. The speed of electronic signals, such as the speed of light in a vacuum or the speed of electricity in conductive materials, can be significantly faster than the speed of sound.