A triac is a three-terminal digital element that may conduct present in both route. This makes them helpful in quite a lot of purposes, together with energy management, motor management, and lighting. Triacs are comparatively easy to check, and there are a couple of totally different strategies that can be utilized.
One frequent technique is to make use of a multimeter. Set the multimeter to the diode take a look at setting and join the probes to the triac’s terminals. If the triac is nice, the multimeter will show a ahead voltage drop of round 1.2 volts.