What is the purpose of an ohmmeter in electrical testing?

The purpose of an ohmmeter in electrical testing is to determine resistance. An ohmmeter is specifically designed to measure the resistance of a component or circuit by applying a small voltage across the component and measuring the current that flows through it. Using Ohm's Law, the resistance can then be calculated, providing valuable information about the state of the electrical component.

Resistance is a fundamental electrical property that describes how much a component opposes the flow of electric current. This measurement helps in diagnosing electrical problems, ensuring that components are functioning correctly, and verifying circuit integrity. Resistance readings can indicate whether a component is in good condition, shorted, or open, which is essential for proper troubleshooting and maintaining electrical systems.