No, the speed of electricity can vary depending on the material through which it is traveling. The speed of electricity, or more specifically the speed of an electrical signal, is determined by the properties of the material through which it is propagating.
In a vacuum or free space, electromagnetic waves, including electrical signals, travel at the speed of light, which is approximately 299,792,458 meters per second (or about 186,282 miles per second).
However, when electricity travels through different materials, such as conductors (e.g., copper or aluminum wires), insulators (e.g., rubber or plastic), or semiconductors (e.g., silicon), the speed of the electrical signal can be slower. This is because the electrical signal interacts with the atoms and molecules of the material, resulting in some delay.
In general, electrical signals tend to travel faster through conductive materials and slower through insulating materials. The specific speed of electricity through a particular material is determined by factors such as the material's conductivity, resistivity, and dielectric properties.
It's important to note that while the speed of electricity can vary, it is typically very fast for practical purposes. In everyday scenarios, the speed of electricity through common conductive materials is usually close to the speed of light, albeit slightly slower.