A device that links to the main source of electricity:

A device that links to the main source of electricity:

• A. Electric meter
• B. Surge protector
• C. Fuse box
• D. Grounding wire

Answer: (C)

The main idea here is that the central service panel is the point where the building’s electrical system connects to the utility supply and from which power is distributed to all circuits. This panel, which houses fuses or circuit breakers, acts as the main disconnect, so it’s the hub that links the wiring in the building to the main source of electricity and controls the flow of power into the system. An electric meter sits between the utility and the panel to measure how much electricity you use, but it doesn’t control or distribute power. A surge protector guards devices from voltage spikes but isn’t the pathway for supplying power. A grounding wire provides a safe path for fault currents to earth, improving safety, but it isn’t the channel that carries normal electrical power from the main source.

The main idea here is that the central service panel is the point where the building’s electrical system connects to the utility supply and from which power is distributed to all circuits. This panel, which houses fuses or circuit breakers, acts as the main disconnect, so it’s the hub that links the wiring in the building to the main source of electricity and controls the flow of power into the system.

An electric meter sits between the utility and the panel to measure how much electricity you use, but it doesn’t control or distribute power. A surge protector guards devices from voltage spikes but isn’t the pathway for supplying power. A grounding wire provides a safe path for fault currents to earth, improving safety, but it isn’t the channel that carries normal electrical power from the main source.