- #1
omul_b
- 4
- 0
Ciao all. I have kind of a basic question but i don't really understand how it works. I don't know how it's named in english, but maybe "voltage controller". It's a screwdriver with a small light bulb that is used to see if there is voltage, on an outlet for example. You plug it into the "phase"(hot) wire hole and press your thumb against a metalic end at the end of the handle and if there is voltage the bulb lights up. So here's the question, how does it work? how do you complete the circuit. Maybe a small schematic please. I know it may be a simple question so pleasez enlighten me! 10x