What does an ohm meter measure?

An ohm meter is a specialized instrument used specifically for measuring resistance within an electrical circuit. When a voltage is applied across the terminals of the ohm meter, it allows for the calculation of resistance based on the current that flows through a component or circuit. The unit of measure for resistance is ohms (Ω), which directly correlates with how much opposition a device presents to the flow of electric current. This measurement is crucial in diagnosing electrical issues, assessing the condition of components, and ensuring that they are working correctly within the desired specifications.

Voltage refers to the potential difference that can drive current through a circuit, and current is the flow of electric charge. Capacitance is related to how much electrical charge a capacitor can store. These parameters, although important in the context of electrical systems, do not pertain to the function of an ohm meter. In contrast, resistance is the sole focus of measurement for this device, solidifying the answer as correct.