Continuity is defined as what?

• A. Electrical resistance of a material
• B. Electric current flowing through a conductor
• C. Amount of electrical pressure
• D. Whether two things are electrically connected

Answer: (D)

Continuity is about whether a complete conducting path exists between two points. If there’s a continuous path, current can flow when a voltage is applied, and a continuity tester will indicate a connection (often with a tone or light). If the path is broken, there’s an open circuit and current cannot flow, so there is no continuity. This concept is distinct from how much resistance a path has or from the actual voltage or current values; it’s specifically about the existence of a connected path for current. In practice, you check wiring, connectors, switches, or traces to ensure there’s continuity, and you’d identify a break as a loss of continuity.