From light bulbs to cell phones, all electronic devices in everyday life rely on the flow of electrons to function. Just as scientists use meters to describe the length of an object or seconds to measure the passage of time, they use amperes, or amps, to quantify electric current—the rate at which electric charge moves through a circuit.
Source:
https://phys.org/news/2020-10-pinning-ampere-supersensitive-particle-detector.html