Final answer:
A multimeter is a device used to measure various electrical quantities in a circuit or system, such as voltage, current, and resistance.
Step-by-step explanation:
A multimeter is a device used in physics and electrical engineering to measure various electrical quantities in a circuit or system. It is primarily used to measure voltage, current, and resistance. For example, it can be used to measure the voltage across a battery or the resistance of a resistor.
By connecting the multimeter's probes to different points in a circuit, you can gather information about the electrical behavior of the system. The readings from the multimeter can help troubleshoot electrical problems, test the functionality of electronic components, or simply gather data for experimental purposes.
For instance, in a vehicle's ignition and electrical systems, a multimeter can be used to check the voltage across spark plugs, measure the current flowing through wires, or test the resistance of sensors. It provides valuable insights into the health and performance of the electrical system.
Learn more about Electrical measurements