Which device is utilized to test a cable or wire?

A continuity tester is specifically designed to check whether there is a complete path for current to flow in a circuit. It is particularly useful for determining if a cable or wire is intact or if there are any breaks along its length. When a continuity tester is connected to both ends of a cable, it can indicate whether the wire is conducting electricity, confirming that there are no interruptions in the circuit.

Multimeters and voltage meters, while capable of testing electrical properties, serve broader purposes. A multimeter can measure voltage, current, and resistance, but is not exclusively focused on checking continuity. Similarly, a voltage meter primarily measures voltage levels and does not provide a direct indication of continuity. Clamp meters are used mainly for measuring current flow without needing to directly connect to the circuit, which is not suitable for testing continuity in a wire.

Using a continuity tester ensures a straightforward and effective method for checking wires and cables, making it the most appropriate choice for this task.