When using a multimeter, what mode is used to measure voltage?

To measure voltage with a multimeter, you need to set the device to the voltage mode. This mode is specifically designed to measure the electrical potential difference between two points in a circuit. When the multimeter is in this mode, it applies a very high internal resistance to the circuit, which ensures that the measurement does not significantly affect the circuit’s operation. This allows for accurate readings without causing a load on the circuit being tested.

In voltage mode, the multimeter displays the measured voltage in volts (V), aiding users in assessing whether a device is functioning properly or diagnosing potential issues. By selecting this mode, users can reliably capture both alternating current (AC) and direct current (DC) voltage levels, depending on the specific multimeter capabilities.

Other modes such as current mode, resistance mode, and frequency mode serve different purposes and would not provide accurate voltage measurements. When using those modes, the multimeter is configured to measure current, resistance, or frequency, respectively, which would not yield relevant voltage readings. Thus, correctly using the voltage mode ensures the tool provides the information needed for electrical measurements and safety considerations.