Which term describes an object or substance capable of conducting electricity?

The term that describes an object or substance capable of conducting electricity is "Conductor." Conductors are materials that allow the flow of electric charge, usually electrons, with minimal resistance. Common examples of conductive materials include metals like copper and aluminum, which are widely used in electrical wiring and circuits due to their high conductivity.

While other terms like insulator, resistor, and semiconductor relate to the behavior of electric charge, they do not describe materials that primarily conduct electricity. Insulators, for instance, are materials that resist electrical flow, thus preventing the passage of electric current. Resistors are components used in circuits to limit the flow of current, converting electrical energy into heat, and are not conductive in the way that conductors are. Semiconductors, on the other hand, typically have conductivity between that of conductors and insulators and are essential in modern electronics, especially in devices like diodes and transistors. However, they are not classified as pure conductors like those in the broad category of conductors.