The multimeter will display the voltage drop across the component on the screen or the scale. You can use the following table to interpret the readings and check if the component is working properly.

You can use a multimeter to test a phone line for voltage by touching the probes to the terminals of the phone jack or the wires of the phone line. To use a multimeter to test a phone line for ...

A multimeter will check the battery voltage. If it’s higher than the rated voltage, your battery capacity is okay. But if it’s lower, you’ll have to replace your battery. Testing without a multimeter ...