What does the DMM function switch measure when set to resistance?

When the DMM (Digital Multimeter) function switch is set to measure resistance, it is specifically designed to quantify how much electrical resistance is present in a component or circuit. Resistance is measured in ohms (Ω), and this function allows the user to determine how much the flow of electric current will be impeded by the material in question.

The multimeter achieves this by sending a small, known voltage through the component and measuring the resulting current that flows. According to Ohm’s Law (V=IR), the resistance can then be calculated. Understanding how to measure resistance is essential for tasks such as troubleshooting electrical issues or testing the integrity of circuits and components, ensuring they are functioning correctly.

In this context, options related to measuring voltage, current, or capacitance do not apply because the DMM is specifically set to gauge resistance, making the choice for resistance the accurate and relevant response in this scenario.