What is the function of a multimeter in troubleshooting electrical systems?

The function of a multimeter in troubleshooting electrical systems is to measure voltage, current, and resistance, allowing technicians to diagnose a wide range of electrical problems. A multimeter is a versatile electronic instrument capable of measuring these three fundamental electrical parameters. By measuring voltage, technicians can determine if a circuit is receiving the correct electrical potential. By measuring current, they can verify if the proper amount of electrical flow is present in a circuit. By measuring resistance, they can check the continuity of circuits and identify short circuits or open circuits. These measurements help to pinpoint the location and nature of electrical faults, such as broken wires, shorted components, or malfunctioning sensors. For example, if a device is not working, a multimeter can be used to check if voltage is reaching the device. If voltage is present, the multimeter can then be used to measure the resistance of the device to see if it is open or shorted. The data obtained with a multimeter is crucial for effective troubleshooting and repair of electrical systems.