Testing electronic components

Test electronic component

Testing electronic components - Test electronic component

How to Test AC/DC Voltage

Most multimeters come with a selector switch that allows you to switch between AC voltage and DC voltage. This is typically abbreviated Vac and Vdc. You have to select the appropriate type of current before you can measure the voltage accurately.

Most multimeters come with a selector switch that allows you to switch between AC voltage and DC voltage. This is typically abbreviated Vac and Vdc. You have to select the appropriate type of current before you can measure the voltage accurately.

In either case, you have to measure the voltage between two points. This means that you will have to use both probes, you cannot just use one.

If you get odd readings that don’t seem to be accurate, one way you can clear this up is by using what is called a reference voltage. An easy way to do this is to hook up your voltmeter to a 9 V battery and see if it reads within the range that a 9 V battery should be outputting. You can test it with multiple batteries if you have doubts.

Be extremely careful when measuring AC voltage. Make certain that you select the appropriate range of voltage when you are hooking up your multimeter. To test whether or not an AC circuit is live, you can get a simple tester at any hardware store that has two probes that you plug into a wall socket or attach directly to wires to determine whether or not current is flowing.