What is a common use for a digital multimeter in troubleshooting?

A digital multimeter is primarily used to diagnose electrical issues by measuring voltage, current, and resistance in circuits. This tool allows technicians to check the integrity of electrical components and systems, helping to identify problems such as short circuits, open circuits, or faulty connections.

By using a digital multimeter, a technician can take precise readings that inform them about the functionality of various parts within an electrical system. For instance, if a circuit is not operating as expected, the multimeter can reveal whether it is receiving the appropriate voltage or if there is a break in the circuit, thereby guiding the troubleshooting process effectively.

This tool is invaluable in many applications—from residential wiring to complex industrial systems—making it a staple in electrical troubleshooting. Other options do not align with the primary functions of a digital multimeter in a troubleshooting context.