While using a digital multimeter to diagnose electrical problems on customers’ equipment, I frequently hear the comment, “I’ve got one of those multimeter things, but I never learned how to use it.” ...

If you’d like to fix or even diagnose anything involving electricity – whether it’s the energy that surges through a car, ...

Q: I have a tenant who complained that a light fixture wouldn’t light. After I replaced the switch, the light still wouldn’t come on. I realized that all the bulbs were out. Anyway, is there a way to ...

Q: My wife wanted me to install a dimmer switch in our dining room — and now the chandelier works only half the time. Two switches in the room control the light. Since I tried to install the dimmer, ...