Copper coulometer

A copper coulometer is like a tool used to measure how much electricity is flowing through a wire. It works by using a special piece of metal called copper. When electricity is flowing through the copper, it causes some of the copper to break off and stick to another metal. This process is called electrolysis, and it helps us measure how much electricity is flowing through the wire. It's kind of like counting how many cars go past you on the street - the more cars, the more electricity flowing through the wire. A copper coulometer helps scientists and engineers make sure that the right amount of electricity is flowing where it needs to go to power things like computers, lights, and other electronic devices.