To test if a 110-volt lighting circuit is alive, a person should best:

To determine whether a 110-volt lighting circuit is alive, using an ammeter in series with a fused jumper and connecting one leg to ground is an effective method for testing the circuit. This approach allows for the measurement of current flow, indicating that the circuit is operational.

When an ammeter is placed in series, it measures the current flowing through the entire circuit. If the circuit is alive and functioning, the ammeter will read a certain level of current, signifying that electrical current is being supplied to the circuit. The connection to ground through a fused jumper provides an additional safety measure to avoid potential hazards. The fuse acts as a protective element, preventing excessive current from causing damage or posing risks during the testing process.

This method also emphasizes safety and accuracy in testing. Using an ammeter this way helps avoid potential issues that can arise from using other devices improperly or in unsafe configurations.

In contrast, using a voltmeter across the line can indicate whether there is voltage present, but it does not provide direct information about current flow in the circuit. Furthermore, touching each wire to ground is risky and may lead to short circuits or electrical shock, while placing an ammeter across the line would not provide an accurate indication of the circuit's status and could