What is the function of a grounded conductor in an electrical system?

The function of a grounded conductor in an electrical system is to carry current back to the source. This is essential for completing the electrical circuit and ensuring that the system operates properly. The grounded conductor, often referred to as the neutral wire, serves as a return path for current in an AC system, allowing for the safe and efficient transfer of electrical energy.

In this context, the grounded conductor plays a crucial role in maintaining the overall stability of the electrical system. It helps balance the electrical load as current travels through the hot wires and returns via the grounded conductor. Without this return path, electrical systems would not function effectively, as there would be no way for the current to complete the circuit.

The other choices pertain to different functions or concepts within an electrical system. Supplying voltage relates to the role of the power source, while ensuring safe disconnection involves protective devices that prevent accidents or faults. Providing a fault path is related to grounding systems, which are vital for safety but distinct from the primary function of the grounded conductor in carrying return current. Thus, understanding the role of the grounded conductor clarifies its significance in ensuring the safe and effective operation of electrical systems.