Ok, I'm trying to find an example of an actual way to measure 1 amp (NOT using a pre-known measurement tool like a multi meter)

according to Wikipedia the procedure goes as follows:

-get 2 infinity long wires.

-Place them in a vacuum.

-space them 1 meter apart.

-attach a scale to them to measure how much attraction force they exert.

-pass a current through both of them (same current, in the same direction, so I guess hook the 2 wires up in series?)

adjust the current until the scale reads 2 x 10 ^ 7 Newton meters of force. (no clue where they got this number, if you know please let me know)

now you have the baseline of 1 amp, and can continue to count the electrons to get a coulomb, and calculate out what 1 volt/ohm/watt is.

but I can't seem to find anywhere where they do this experiment (lots of people making electromagnets, but no one figuring out the actual ampere's running through the system using that magnetic attraction)

any thoughts on this?