A grounding conductor installed in a conduit with circuit conductors carries current ___.

The grounding conductor is designed primarily as a safety feature to provide a path for fault current to flow in the event of a ground fault. A ground fault occurs when there is an unintended connection between an energized conductor and a grounded surface or conductor, which could potentially lead to electrical shock or fire hazards. When this happens, the grounding conductor carries the fault current back to the source, allowing protective devices like circuit breakers or fuses to react and disconnect the faulty circuit, enhancing safety.

In contrast, the grounding conductor does not typically carry current during normal operations or under overload conditions. Its essential role is to ensure safety by providing a reliable path for fault currents and by helping to stabilize the electrical system against surges or transient conditions.

Thus, while options related to overloads or normal operational currents may lead to confusion, the specific function of the grounding conductor is to carry current only in response to fault conditions, affirming why the correct choice pertains to its role during a ground fault occurrence.