What is the main purpose of a multimeter in electrical troubleshooting?

The main purpose of a multimeter in electrical troubleshooting is to measure voltage, current, and resistance. This multifunctionality makes multimeters essential tools for technicians working on electrical systems.

When troubleshooting electrical circuits, understanding these three fundamental parameters is crucial:

1. Voltage Measurement: By measuring voltage, technicians can determine if the electrical supply is adequate and functional.

2. Current Measurement: Current measurement helps check if the circuit is drawing the correct amount of current, which is vital for the proper operation of electronic components.

3. Resistance Measurement: Resistance measurement allows technicians to test for breaks or shorts in wires and components, ensuring the circuit is intact and functioning as designed.

The ability to measure all three parameters means that technicians can perform comprehensive diagnostics quickly and effectively, identifying problems in the electrical system with greater accuracy than devices that only measure one parameter.