voltage, a squiggly line indicates alternating current (found in household circuits), and a straight or dashed line indicates direct current (found in most batteries). The line can appear next to or over the letter.[1]
The power coming from most household circuits is AC. However, some devices may convert the power to DC through a transistor, so check the voltage label before you test an object.[2]
The setting for testing voltage in an AC circuit is typically marked V~, ACV, or VAC.
To test voltage on a DC circuit, set the multimeter to V–, V---, DCV, or
