3 ms·

I am not disagreeing with your overall point, but they sell meters that measure electric potential. We measure it all the time.

• AnimalMuppet 6y ago
  No, they measure the electric potential difference between two points. This is why, for example, you ground your scope probes.
  • deleted 6y ago
    [deleted]
  • mcnamaratw 6y ago
    Only the potential difference is physically meaningful. The absolute potential has no effect on anything. You can add 1000 V or 10^6 V to everything and you get exactly the same physics.