In schematic diagrams, which line type typically represents a direct electrical connection that forms part of the wiring path?

• A. Dotted line represents a shield.
• B. Solid line typically represents a direct electrical connection that forms part of the wiring path.
• C. Wavy line represents a shield jumper.
• D. Dashed line typically represents a direct electrical connection.

Answer: (B)

In schematics, the line style shows how components are actually connected. A solid line represents the direct electrical connection that forms the wiring path between points, wires, or terminals—the conductor that carries current. This is the standard way to depict the continuity of the circuit.

Other line styles convey different ideas: dotted lines often indicate shielding, boundaries, or non-physical relationships; wavy lines can denote shielded or flexible conductors in some drawings; dashed lines usually show mechanical linkages or non-physical connections, not the main wiring path. Because of that, the solid line is the best choice for representing the actual wiring path in a schematic.