How is wire identification confirmed when using an inductive amplifier probe?

The correct approach to confirm wire identification when using an inductive amplifier probe involves physically interacting with the wire's signal. Touching the tip of the inductive amplifier probe to the signal-carrying conductor allows the probe to pick up the electromagnetic field generated by the current flowing through the wire. This interaction amplifies the signal, providing a clear indication of the specific wire in question.

The feature of inductive amplifier probes is that they are specifically designed to detect and amplify the energy emitted by live wires, making it an effective method for wire identification. The other methods listed do not utilize the inductive capabilities of the probe and, hence, do not confirm wire identification in the same effective manner. For instance, checking voltage levels or measuring resistance does not uniquely identify a wire but rather provides information about the wire's status or condition without directly confirming its identity. Listening for a tone signal, while helpful with some tracing technologies, does not offer the same direct confirmation of which wire is being tested, particularly when using an inductive probe.