What kind of electrical charge does a cable carry in communication networks?

In communication networks, cables typically carry an oscillating voltage rather than a constant voltage. This oscillation is a result of the alternating current (AC) that is used to transmit signals. The oscillating voltage represents the changes in electrical potential that allow for the modulation of signals, enabling communication between devices.

In a communication context, the information being transmitted is often encoded in the form of oscillating voltages that correspond to the digital signals being sent over the network. This allows for efficient data transmission over various distances and mediums.

Understanding this concept is crucial for grasping how electronic communication works, including the principles of signal transmission and reception in various networking technologies.