I like watching science videos on YouTube and I have a very basic understanding of electronics. But I never seem to get the “negative voltage” thing.
Why is it used and how does it differ from normal voltage.
In: 5
It differs from a positive voltage only in what you arbitrarily decide to call zero. Lets say you measure a voltage, and it’s 5 volts. If you swap your leads around, you measure -5 volts. The only difference is which one you’re calling zero.
It’s sort of like negative temperature on the Celsius or Fahrenheit scales, negative temperatures are just temperatures below the point those scales decide are “zero”.
Latest Answers