In electrical diagrams, which symbol commonly represents ground?

• A. A ground symbol
• B. A battery symbol
• C. A rectangle with a line across
• D. A fuse symbol

Answer: (B)

Ground is shown by a symbol consisting of three horizontal lines stacked on top of each other, with the longest line at the top and the shorter lines beneath. This marks the reference point in the circuit, often tied to earth or the chassis.

A battery symbol, with two unequal parallel lines, represents a power source, not ground. A rectangle with a line across isn’t a standard ground symbol and typically denotes another component or switch depending on the diagram. A fuse symbol has its own distinct appearance and denotes protection, not ground.