And what he saying, and you weren’t listening to is it all your testing equipment is introducing resistance.
You can mesaure current by electrical fields, but have the same issues as before. Your testing equipment and your very tiny sample sizes.
You can mesaure current by electrical fields, but have the same issues as before. Your testing equipment and your very tiny sample sizes.
The way to think of this is simple: you can't measure anything without subtle joining the circuitry that you are measuring and that has an effect on the properties of the circuit as a whole for which you have to compensate. In this case: the voltage measurement is going to consume a tiny bit of power and that is due to the resistance of the measurement apparatus even if it isn't in the main current path but a secondary one. But the people that do these kinds of measurements tend to be well aware of this and will pick their measurement gear and reference current to minimize the chances of that happening.