Which term describes the endpoint for current at the negative terminal of a power source?

Which term describes the endpoint for current at the negative terminal of a power source?

• A. Ground fault (GFIC)
• B. Hydrometer
• C. Ground
• D. Diode

Answer: (C)

The endpoint for current returning from a powered circuit is ground. In a DC system, current leaves the source via the positive terminal, flows through the load, and returns to the source through the negative terminal. When that negative terminal is tied to a common reference point, called ground, it becomes the return path that completes the circuit and establishes a 0 V reference for the system. A ground fault is an unintended path to ground and is not the normal endpoint for current. The other options don’t describe the return path: a hydrometer measures liquid density, and a diode directs current flow in one direction but isn’t the return endpoint.

The endpoint for current returning from a powered circuit is ground. In a DC system, current leaves the source via the positive terminal, flows through the load, and returns to the source through the negative terminal. When that negative terminal is tied to a common reference point, called ground, it becomes the return path that completes the circuit and establishes a 0 V reference for the system. A ground fault is an unintended path to ground and is not the normal endpoint for current. The other options don’t describe the return path: a hydrometer measures liquid density, and a diode directs current flow in one direction but isn’t the return endpoint.